0:00:02 > 0:00:04My name is Sarah Jane Smith.
0:00:04 > 0:00:07These are my Alien Files, the collected information gathered
0:00:07 > 0:00:11by me and the rest of the Bannerman Road gang about extra-terrestrials
0:00:11 > 0:00:15that have threatened our planet and might do so again.
0:00:18 > 0:00:21The universe is amazing, and don't be fooled by what
0:00:21 > 0:00:25some people might tell you. It's full of strange and wonderful life.
0:00:25 > 0:00:29I've met so much of it out there among the stars, and here on Earth.
0:00:29 > 0:00:32But not all of it is friendly.
0:00:32 > 0:00:37Pay attention because one day Earth might be dependent on you.
0:00:41 > 0:00:47Entering the Alien Files this time are the slithery Slitheen, their
0:00:47 > 0:00:52untrustworthy Blathereen cousins and their deadly gift of rakweed.
0:01:00 > 0:01:05Sarah Jane, would I be correct in assuming that is an email to Luke?
0:01:05 > 0:01:09That's right. It's so strange, Mr Smith. I was alone for so long after
0:01:09 > 0:01:13I stopped travelling with the Doctor, and then Luke arrived...
0:01:13 > 0:01:17And then you dreaded his growing up, and being alone again.
0:01:17 > 0:01:21- I wasn't aware that Xyloks could read minds.- We cannot.
0:01:21 > 0:01:24But I have become sufficiently familiar with human feelings
0:01:24 > 0:01:27to estimate successfully your reaction to his leaving.
0:01:27 > 0:01:30Yes, sometimes I forget he's not here for a moment and then
0:01:30 > 0:01:32it's like a wave hitting you.
0:01:32 > 0:01:36On the positive side, he did take K-9 with him.
0:01:36 > 0:01:37Now, now, come on, Mr Smith.
0:01:37 > 0:01:41Whatever you say, K-9 is still the closest thing you have to family.
0:01:41 > 0:01:43And we all need family.
0:01:43 > 0:01:48Unfortunately, family ties are not always such a good thing, Sarah Jane.
0:01:48 > 0:01:51For example, some alien kinsfolk that we
0:01:51 > 0:01:54have had the misfortune to encounter.
0:01:54 > 0:01:56Well, I assume you're referring
0:01:56 > 0:01:58to certain families of Raxacoricofallapatorius?
0:01:58 > 0:02:00Indeed, Sarah Jane.
0:02:00 > 0:02:03Notable omissions from the Alien Files so far,
0:02:03 > 0:02:08which I suggest we rectify by commencing information gathering
0:02:08 > 0:02:10in three, two, one...
0:02:17 > 0:02:20Where would you like to begin, Sarah Jane?
0:02:20 > 0:02:23Well, you can't get much more slippery than the Slitheen.
0:02:23 > 0:02:27I would concur. The Slitheen are calcium-based inhabitants of the
0:02:27 > 0:02:32planet Raxacoricofallapatorius in the Isop Galaxy.
0:02:32 > 0:02:35They are one of the planet's most disreputable families,
0:02:35 > 0:02:38renowned for criminal behaviour.
0:02:38 > 0:02:42They notoriously joined with other aliens like the Uvodni and Sontarans
0:02:42 > 0:02:46in forming the Alliance, a large grouping of
0:02:46 > 0:02:50many of the Doctor's enemies, that also included old adversaries like
0:02:50 > 0:02:52the Cybermen and the Daleks.
0:02:52 > 0:02:56The Slitheen are hunters,
0:02:56 > 0:03:00humanoid in form and over two metres in height.
0:03:00 > 0:03:03Their strong arms are well equipped to swim through
0:03:03 > 0:03:07the oceans on their home planet, while their large eyes are capable
0:03:07 > 0:03:09of seeing in its blizzards.
0:03:11 > 0:03:15Mastery of compression field technology allows them to disguise
0:03:15 > 0:03:20themselves as other smaller humanoids by squeezing into their skins.
0:03:20 > 0:03:23By killing the previous occupants, that is,
0:03:23 > 0:03:25and climbing into what they call skin suits.
0:03:25 > 0:03:27Regrettably so.
0:03:27 > 0:03:30Not pretty. And the side-effect of their camouflage as humans isn't
0:03:30 > 0:03:32especially pleasant, either.
0:03:32 > 0:03:35An unfortunate side effect of the
0:03:35 > 0:03:40compression field technology is internal gas instability,
0:03:40 > 0:03:46similar to human flatulence but with the odour of decaying calcium.
0:03:46 > 0:03:48On the other hand, it can be a
0:03:48 > 0:03:51pretty effective signal when you're looking for a disguised Slitheen.
0:03:51 > 0:03:57Both their physical strength and poison-tipped claws can prove deadly.
0:03:58 > 0:04:02And their sense of smell is the keenest in the Galaxy.
0:04:02 > 0:04:06But exposure to vinegar can cause an extreme allergic reaction.
0:04:08 > 0:04:12They have to look out or else they've have had their chips.
0:04:12 > 0:04:14I suspect Clyde has been coaching you
0:04:14 > 0:04:16in the practice of humour, Sarah Jane.
0:04:16 > 0:04:19And you never used to be so cheeky, Mr Smith.
0:04:19 > 0:04:24To sum up, the Slitheen are untrustworthy and ruthless,
0:04:24 > 0:04:26obsessed with money making.
0:04:26 > 0:04:30The classic Slitheen tactic is infiltrating low-tech planets like
0:04:30 > 0:04:33Earth by posing as the native species.
0:04:33 > 0:04:36That's just what they were doing the first time we came up against them.
0:04:36 > 0:04:40Luke had just started at his new school and that's tough enough, but
0:04:40 > 0:04:43turning up to discover the place is being run by Slitheen in disguise...
0:04:43 > 0:04:45that's something quite different.
0:04:48 > 0:04:50Now, you take care, OK?
0:04:50 > 0:04:54The clues that something odd was going on were there from the start.
0:04:54 > 0:04:55The rotting food in the canteen.
0:04:55 > 0:04:58- Sir? Sir?- What?
0:04:58 > 0:05:00How am I meant to eat that?
0:05:00 > 0:05:02A strange smell everywhere.
0:05:02 > 0:05:05- I don't know - metal, electric. - Like batteries.
0:05:05 > 0:05:09And teachers who were...peculiar.
0:05:09 > 0:05:12Right, assembly, yada ya...
0:05:12 > 0:05:14Er, welcome back, everybody.
0:05:14 > 0:05:16It's a new year. Hope you all do well.
0:05:16 > 0:05:19And study hard, because I guarantee
0:05:19 > 0:05:23none of you are going to be pop stars.
0:05:23 > 0:05:25Worse than peculiar, in fact.
0:05:25 > 0:05:29These were disguised Slitheen hatching a nasty scheme.
0:05:29 > 0:05:31From a hideaway within the school
0:05:31 > 0:05:34they were meddling with transduction technology.
0:05:34 > 0:05:37Their plan was to drain all Earth's energy so as to sell it,
0:05:37 > 0:05:40causing havoc in the process.
0:05:42 > 0:05:46Meanwhile, I was investigating the company behind the technology block
0:05:46 > 0:05:48at the school and many others like it.
0:05:48 > 0:05:50I had found out that identical
0:05:50 > 0:05:55buildings had been built on schools across London - all very suspicious.
0:05:55 > 0:05:57Because these projects are so far apart,
0:05:57 > 0:05:59nobody connects you with the problems.
0:05:59 > 0:06:04I strongly advise you to leave right now, if you know what's good for you.
0:06:04 > 0:06:07- Is that a threat?- Yes.
0:06:07 > 0:06:11- What?- I did give you fair warning.
0:06:20 > 0:06:25At the time, I had no idea what alien species had just peeled off
0:06:25 > 0:06:29her skin and started chasing me, but there was no doubt she was trouble.
0:06:31 > 0:06:33Back at school, Maria was having the same problem,
0:06:33 > 0:06:35with one of her teachers.
0:06:41 > 0:06:45I am Slitheen.
0:06:48 > 0:06:50We are out of here now. Come on.
0:06:50 > 0:06:52I didn't know Clyde back then,
0:06:52 > 0:06:55and he certainly had no idea aliens existed.
0:06:55 > 0:06:59- And there's another one, a boy! - You are sad. Hiding from a teacher?
0:06:59 > 0:07:01- He'll give you a detention!- Come on!
0:07:01 > 0:07:04Although he did now.
0:07:04 > 0:07:06One crucial piece of advice for
0:07:06 > 0:07:11these files is when aliens are after you, listen to everything they say.
0:07:11 > 0:07:13It might just give you a clue how to get away.
0:07:13 > 0:07:16What lovely perfume you're wearing, Miss Smith.
0:07:19 > 0:07:22You're positively fragrant.
0:07:25 > 0:07:29The mention of sensitive nostrils gave me an idea.
0:07:29 > 0:07:31Good sense of smell, have you?
0:07:31 > 0:07:34Oh, yes. Best nostrils in the galaxy, official.
0:07:34 > 0:07:36- And you like my perfume?- Lovely!
0:07:36 > 0:07:39Then sniff this!
0:07:44 > 0:07:46And once you have a vital piece of information,
0:07:46 > 0:07:49pass it on as soon as you can.
0:07:51 > 0:07:55- Luke? Right, listen. - She said you've got to make a smell.
0:07:55 > 0:07:57Make a big enough smell and you can get away.
0:07:57 > 0:07:59What are we going to do - fart our way out?
0:07:59 > 0:08:00- Would that be funny?- What?!
0:08:00 > 0:08:02They're nearby, Daddy.
0:08:02 > 0:08:04I can smell you.
0:08:06 > 0:08:08Wolverine, pure masculine action?
0:08:16 > 0:08:20- Go, go, go.- Sarah Jane!
0:08:20 > 0:08:22Come on, Sarah Jane!
0:08:22 > 0:08:25I was relieved that Luke and Maria were safe,
0:08:25 > 0:08:27but who was this other boy?
0:08:27 > 0:08:29- What is he doing here? - Sorry!
0:08:29 > 0:08:32Someone else's life in my hands?
0:08:32 > 0:08:34Just what I needed!
0:08:34 > 0:08:38And that was when Clyde - and his jokes - came into my life,
0:08:38 > 0:08:41although at the time I wasn't exactly overjoyed.
0:08:41 > 0:08:44An understatement, Sarah Jane.
0:08:44 > 0:08:46Right, what's going on in here?
0:08:46 > 0:08:48Why don't you all bring all your friends round, the whole school?
0:08:48 > 0:08:51If he tells anyone, who's going to believe him?
0:08:51 > 0:08:54I've just had monsters from outer space on my back...
0:08:54 > 0:08:56Just shut up for the minute, will you? I'm busy.
0:08:56 > 0:08:58And right now, you're not important,
0:08:58 > 0:09:01even if it is getting like Clapham Junction up here.
0:09:01 > 0:09:04What we needed to do was work out what the Slitheen were up to.
0:09:04 > 0:09:07And we made a good start.
0:09:07 > 0:09:09It turned out that the new technology blocks weren't
0:09:09 > 0:09:11just in schools across London.
0:09:11 > 0:09:14The Slitheen's plans went global.
0:09:14 > 0:09:18Mr Smith, plot the position of every Coldfire building put up in the
0:09:18 > 0:09:21last 18 months around the world.
0:09:27 > 0:09:29Together, they were forming
0:09:29 > 0:09:33a network capable of draining every last drop of energy from the earth.
0:09:33 > 0:09:36- And it had begun.- Breaking news.
0:09:36 > 0:09:41There's a massive loss of power on the west coast of North America.
0:09:41 > 0:09:43Los Angeles has gone dark.
0:09:43 > 0:09:46And it was all being run from Luke's school.
0:09:46 > 0:09:48Section One down.
0:09:48 > 0:09:51Grazie, Napoli. Thank you. Moving to Section Two.
0:09:51 > 0:09:53Hello, Washington DC.
0:09:53 > 0:09:55- "Howdy, London."- Connect.
0:09:55 > 0:10:00When under attack from aliens, it's important not to panic.
0:10:00 > 0:10:02Use your brains. Look for weaknesses.
0:10:02 > 0:10:05That's what we did, setting you on the case, Mr Smith.
0:10:05 > 0:10:08Raxacoricofallapatorians.
0:10:08 > 0:10:10Calcium-based life-forms.
0:10:10 > 0:10:13- Give us the weaknesses.- Weaknesses.
0:10:13 > 0:10:14They are a naturally hardy race.
0:10:14 > 0:10:20However, their bodies are notoriously hypersensitive to...
0:10:20 > 0:10:21No!
0:10:21 > 0:10:25That was a blow - a power cut, presumably the Slitheens' doing.
0:10:25 > 0:10:28And no power for you, Mr Smith, meant we were on our own.
0:10:28 > 0:10:29We had to do something.
0:10:29 > 0:10:33So I suggested we head to the school.
0:10:33 > 0:10:35We can't stop them.
0:10:35 > 0:10:37Plus, they'll get us before we even reach them.
0:10:37 > 0:10:39If you can't say anything useful, go home.
0:10:39 > 0:10:42Well, that's when I learnt a bit of a lesson.
0:10:42 > 0:10:44That you shouldn't judge a book by its cover.
0:10:44 > 0:10:47Because up until then, the Clyde Langer-shaped book
0:10:47 > 0:10:51that had turned up in my house had been getting on my nerves.
0:10:51 > 0:10:53This morning, Jeffrey - the Slitheen Jeffrey -
0:10:53 > 0:10:55he went mad when he nicked my bag.
0:10:55 > 0:10:58What's the Slitheen going to care about that?
0:10:58 > 0:11:01- He sniffed it. He was scared. - Well, what was in that bag?
0:11:01 > 0:11:04- My books, some Tangfastics and my lunch.- Well, what was in your lunch?
0:11:04 > 0:11:06Cold chip sandwich. I made it this morning.
0:11:06 > 0:11:08I wasn't going to eat anything from the canteen of death.
0:11:08 > 0:11:11What, the Slitheen are allergic to potato, bread, butter?
0:11:11 > 0:11:13No, the Slitheen in the office was eating a sandwich.
0:11:13 > 0:11:15- What was on those chips? - Salt and vinegar.
0:11:15 > 0:11:17- Salt. Must be it.- If the Slitheen
0:11:17 > 0:11:20are made mostly from water, it will dehydrate them, like slugs.
0:11:20 > 0:11:23No, they put extra salt in everything - bread, butter...
0:11:23 > 0:11:26It's got to be something else. It's got to be the vinegar!
0:11:26 > 0:11:29Vinegar, that's acetic acid. Reacts with calcium.
0:11:29 > 0:11:32The Slitheen are made of calcium. I'm right. It's the vinegar.
0:11:32 > 0:11:34Kitchen!
0:11:34 > 0:11:35He was right.
0:11:37 > 0:11:40But it was then but the full horror
0:11:40 > 0:11:42of the Slitheens' plan was revealed.
0:11:43 > 0:11:45Go ahead, lad.
0:11:45 > 0:11:48They weren't just after Earth's electrical power.
0:11:48 > 0:11:51Turn out the sun.
0:11:51 > 0:11:55They were thinking much bigger than that.
0:11:55 > 0:11:57What's going on?
0:11:57 > 0:12:00- It's transduction. - They've switched off the sun!
0:12:00 > 0:12:03- They're draining its power. - It's getting cold.
0:12:03 > 0:12:06- Everyone's going to die.- I told you, we're going to stop them.
0:12:06 > 0:12:07What, the four of us?
0:12:07 > 0:12:09With vinegar in plastic squeezies?
0:12:09 > 0:12:15As we approached, there was a welcome being prepared by Gloon,
0:12:15 > 0:12:17the Slitheen occupying the headmaster's body.
0:12:17 > 0:12:22I think an adult better deal with them this time.
0:12:27 > 0:12:30I had no idea whether this vinegar plan would work but at least
0:12:30 > 0:12:32it might cause some disruption,
0:12:32 > 0:12:35while Luke and I looked for the capacitor room.
0:12:35 > 0:12:38Didn't like that, did you?
0:12:38 > 0:12:40- Vinegar! Get back! - A step further...
0:12:43 > 0:12:45Keep back!
0:12:47 > 0:12:50You're afraid. A Slitheen girl your age would do it.
0:12:50 > 0:12:53Wouldn't think twice. But all the fight's gone out of you.
0:12:53 > 0:12:56You just stand there, shaking in your shoes!
0:12:56 > 0:12:58That's why we win!
0:13:03 > 0:13:05Oops!
0:13:07 > 0:13:10That allergic reaction was certainly extreme.
0:13:10 > 0:13:12The vinegar had worked, maybe too well.
0:13:12 > 0:13:14I hate violence. It's not my way.
0:13:14 > 0:13:16But on this occasion, what could we do?
0:13:16 > 0:13:18If the Earth wasn't to freeze
0:13:18 > 0:13:22into extinction, we had to stop the Slitheen by whatever means we could.
0:13:27 > 0:13:28Daddy!
0:13:28 > 0:13:30Mum!
0:13:42 > 0:13:46When Luke fired the sonic lipstick at the capacitor, where the sun's
0:13:46 > 0:13:47energy was being gathered,
0:13:47 > 0:13:51that set off a series of massive electrical explosions.
0:13:51 > 0:13:52It was terrifying.
0:13:55 > 0:13:57It's out of control!
0:14:00 > 0:14:03And then I was faced with an awful choice.
0:14:03 > 0:14:08You can't leave us in here. Use your sonic device. Open the door.
0:14:08 > 0:14:10- Open the door!- I'm only 12.
0:14:10 > 0:14:13He's my son.
0:14:13 > 0:14:15Please, let him live.
0:14:16 > 0:14:19- Luke.- You can't let them out.
0:14:30 > 0:14:34However twisted and criminal they might have been, they were a family.
0:14:34 > 0:14:39He was just a child. Maybe if I'd been quicker to help them, things
0:14:39 > 0:14:40might have worked out differently.
0:14:40 > 0:14:44To have reacted quicker in such testing circumstances
0:14:44 > 0:14:47would have required a speed of thought and action
0:14:47 > 0:14:49well beyond average human capability.
0:14:49 > 0:14:51Maybe.
0:14:51 > 0:14:55Shall I upload information on the Slitheen to the Alien Files now?
0:14:55 > 0:14:58No, not just yet. There's another alien family from
0:14:58 > 0:15:02- the same planet as the Slitheen... - Raxacoricofallapatorius.
0:15:02 > 0:15:04..that I think we should include - the Blathereen.
0:15:04 > 0:15:06Data profile, please, Mr Smith.
0:15:07 > 0:15:10The Blathereen are a Raxacoricofallapatorian
0:15:10 > 0:15:14family generally in conflict with their cousins, the Slitheen.
0:15:16 > 0:15:20Like the feud between the Daleks and the Time Lords, and the long-lasting
0:15:20 > 0:15:23war between the Sontarans and the Rutan Host,
0:15:23 > 0:15:24there is a lengthy and bitter history
0:15:24 > 0:15:27to the bad blood between these Raxacoricofallapatorian relations.
0:15:27 > 0:15:34Many Blathereen have been harmless, but some factions are far from that.
0:15:34 > 0:15:38They are similar in appearance to the Slitheen, but orange in colour.
0:15:38 > 0:15:41Their table manners are appalling.
0:15:41 > 0:15:42To sum up,
0:15:42 > 0:15:47the Blathereen are an apparently peace-loving, if gluttonous family.
0:15:47 > 0:15:50Some can be extremely devious, however, and
0:15:50 > 0:15:53need to be approached with caution.
0:15:53 > 0:15:55Whenever I meet a new alien species,
0:15:55 > 0:15:57I'm always hopeful that they might want to be
0:15:57 > 0:16:01friends with the human race rather than seek to take us over.
0:16:01 > 0:16:03Statistical analysis would confirm that it
0:16:03 > 0:16:07is unlikely that all alien species arrive on earth with subjugation of
0:16:07 > 0:16:09the human race as their sole purpose.
0:16:09 > 0:16:14When I met a Blathereen couple called Leaf and Tree,
0:16:14 > 0:16:18they seemed different to any aliens I'd come across before,
0:16:18 > 0:16:21and were the first ones I'd invited round for dinner.
0:16:21 > 0:16:26- And this delightful liquid is...? - Was tomato soup.
0:16:26 > 0:16:28Delicious.
0:16:28 > 0:16:32We must take some home for next time the Rackateen come to dinner.
0:16:32 > 0:16:34They adore foreign food.
0:16:34 > 0:16:38They said they were ashamed of the havoc the Slitheen had caused over
0:16:38 > 0:16:41the years and wanted to put that right with a gift.
0:16:43 > 0:16:46This is rakweed.
0:16:46 > 0:16:49Thank you.
0:16:49 > 0:16:51It's a staple food back home.
0:16:51 > 0:16:55It can grow anywhere, even in the harshest conditions.
0:16:55 > 0:16:58We know you suffer from famines on earth.
0:16:58 > 0:17:00Rakweed could put an end to them forever.
0:17:00 > 0:17:06Your initial analysis of the rakweed put our minds at rest, Mr Smith.
0:17:06 > 0:17:08It is true that when I first examined
0:17:08 > 0:17:12the specimen all indications were that it was totally harmless
0:17:12 > 0:17:15and that the Blathereens' gift was offered in good faith.
0:17:15 > 0:17:18Clyde could tell everything wasn't right
0:17:18 > 0:17:20with the Blathereen and their offering.
0:17:20 > 0:17:22They're Blathereen, not Slitheen.
0:17:22 > 0:17:25Ah - Slitheen, Blathereen, whatever-een! They're from
0:17:25 > 0:17:29Raxacorico...doodah, and that place has a seriously dodgy reputation.
0:17:29 > 0:17:35You can't condemn an entire race just because a few of them are bad.
0:17:35 > 0:17:38We're here to help aliens - not just fight them.
0:17:38 > 0:17:39Exactly.
0:17:39 > 0:17:41But Clyde was right.
0:17:41 > 0:17:44There was much more to the rakweed than met the eye.
0:17:47 > 0:17:49Overnight, it began to mutate.
0:17:49 > 0:17:53The next morning, millions of rakweed spores were released
0:17:53 > 0:17:54into the atmosphere.
0:18:01 > 0:18:03Now I am in full possession of
0:18:03 > 0:18:06the facts, Sarah Jane, I would suggest a full
0:18:06 > 0:18:10informational upload on rakweed would merit inclusion in the Alien Files.
0:18:10 > 0:18:12Data profile, please, Mr Smith.
0:18:13 > 0:18:17Rakweed is a small green plant with edible leaves.
0:18:17 > 0:18:20Its DNA is self adapting when threatened,
0:18:20 > 0:18:25And its infectious and rapidly multiplying spores can be deadly.
0:18:27 > 0:18:30Rakweed's survival and growth rely heavily on each
0:18:30 > 0:18:34plant communicating with others, via the high-pitched noise they produce.
0:18:38 > 0:18:42Its abundance on Raxacoricofallapatorius makes it part
0:18:42 > 0:18:43of the staple diet there, and its
0:18:43 > 0:18:49hardy nature and speed of growth mean it can flourish on Earth, too.
0:18:49 > 0:18:52But far from feeding the planet, this hideous rakweed was capable of
0:18:52 > 0:18:55killing everyone on Earth, starting with Luke.
0:19:00 > 0:19:02It was a shock to see Luke sick.
0:19:02 > 0:19:06The Bane, the aliens who created him, had made him immune to illness,
0:19:06 > 0:19:11so seeing him like this was just awful.
0:19:11 > 0:19:13What's this?
0:19:13 > 0:19:16He has been subjected to an incredibly high
0:19:16 > 0:19:18dose of rakweed spores.
0:19:18 > 0:19:21Luke? Luke? You must stay awake.
0:19:21 > 0:19:23Yeah.
0:19:23 > 0:19:24There.
0:19:26 > 0:19:29It just goes to show the importance of being vigilant at all times.
0:19:29 > 0:19:35I can't believe I was so careless as to leave rakweed sitting on my desk.
0:19:35 > 0:19:37Mr Smith, I need you!
0:19:39 > 0:19:43Mr Smith, please! Help us!
0:19:43 > 0:19:45Breathing in that amount of rakweed spores
0:19:45 > 0:19:47would have killed you in seconds, Sarah Jane.
0:19:47 > 0:19:50What was required was intervention from a dependable and operationally
0:19:50 > 0:19:53decisive intelligence.
0:19:53 > 0:19:56Did we have someone like that around, Mr Smith?
0:19:56 > 0:19:58My purpose is to protect Earth,
0:19:58 > 0:20:01and you, Sarah Jane, by whatever means at my disposal.
0:20:01 > 0:20:04Including my cooler fans.
0:20:04 > 0:20:07Launching venting system.
0:20:07 > 0:20:08Maximum extraction.
0:20:21 > 0:20:25You and your cooling system had saved us for now.
0:20:25 > 0:20:28Mr Smith? You are amazing!
0:20:28 > 0:20:30But we were still in big trouble.
0:20:30 > 0:20:32Luke was getting worse all the time
0:20:32 > 0:20:35and Earth was about to become one huge rakweed patch.
0:20:37 > 0:20:40Our so-called friends, the Blathereen had
0:20:40 > 0:20:44parked their ship in the Antarctic to watch their evil scheme unfold.
0:20:46 > 0:20:49Time for me to make a visit to the South Pole.
0:20:53 > 0:20:55I recall you teleported
0:20:55 > 0:20:59to the Blathereens' ship without the necessary power for a return journey.
0:20:59 > 0:21:03An extremely hazardous undertaking, Sarah Jane.
0:21:03 > 0:21:07When it comes to my son, any risk is worth taking and I mean that.
0:21:07 > 0:21:10This is loaded with vinegar.
0:21:10 > 0:21:12You're going to do exactly as I say
0:21:12 > 0:21:15or I'll blast you to oblivion.
0:21:17 > 0:21:19Like the Slitheen, the Blathereen have the
0:21:19 > 0:21:22same extreme hypersensitivity to vinegar so I thought with
0:21:22 > 0:21:25a Super Soaker full of the stuff the odds were stacked in my favour.
0:21:25 > 0:21:29We have no choice, my dear.
0:21:29 > 0:21:32Entering computer code.
0:21:32 > 0:21:36Destroy all rakweed.
0:21:36 > 0:21:40I'd taken the Blathereen at their word once before and lived
0:21:40 > 0:21:43to regret it. But it seemed there were no tricks this time.
0:21:43 > 0:21:48The rakweed is being eliminated. It will take a few seconds.
0:21:48 > 0:21:50Confirm rakweed density on Earth.
0:21:50 > 0:21:53Rakweed fully eliminated.
0:21:53 > 0:21:57Would you mind putting the weapon down, Sarah Jane.
0:22:02 > 0:22:08- Let go of me! - Computer, return to normal view.
0:22:08 > 0:22:11Good try, Miss Smith, but not good enough.
0:22:11 > 0:22:14PHONE
0:22:16 > 0:22:19Luke was slipping into a coma and I was trapped in Antarctica
0:22:19 > 0:22:21with the Blathereen but
0:22:21 > 0:22:26it's at times like that that you're really glad to be part of a team...
0:22:28 > 0:22:31We all had a part to play. Clyde, Rani, Luke and K-9
0:22:31 > 0:22:34were having their own encounter with rakweed spores at school and were
0:22:34 > 0:22:36about to make a vital discovery.
0:22:40 > 0:22:43- Get back!- Clyde, no!
0:22:47 > 0:22:49What?
0:22:52 > 0:22:53How did that just happen?
0:22:53 > 0:22:55End-of-period bell, must have been.
0:22:57 > 0:22:59Saved by the bell!
0:23:02 > 0:23:05She can't just have vanished.
0:23:05 > 0:23:09My priority was to get back to the attic and the Blathereens'
0:23:09 > 0:23:11teleporter was just what I needed.
0:23:11 > 0:23:14- Lost something?- Leave that alone!
0:23:17 > 0:23:21While at school, Clyde, Rani and K-9 were seeing if the bell tactic would
0:23:21 > 0:23:24work a second time.
0:23:26 > 0:23:29It's working!
0:23:31 > 0:23:34- K-9, you did it. - Can you turn it off now.
0:23:42 > 0:23:44- It's still alive outside. - We're never going to defeat it.
0:23:44 > 0:23:50Time to think big and loud. Noise had worked in the school,
0:23:50 > 0:23:52would it work across the whole city?
0:23:52 > 0:23:54K-9, give Mr Smith the bell's frequency.
0:23:54 > 0:23:561421.09 Hertz.
0:23:56 > 0:23:58I am now linking to all electrical devices in the area
0:23:58 > 0:24:00invaded by the rakweed and retuning them to
0:24:00 > 0:24:05replicate the bell's frequency. Prepare yourself, Sarah Jane.
0:24:05 > 0:24:07Cover your ears, this is going to be really, really loud.
0:24:07 > 0:24:12ALARMS SCREECH AND BLARE
0:24:20 > 0:24:22That's enough for now.
0:24:31 > 0:24:33It's over.
0:24:33 > 0:24:38- Yes...- And you see, you were quite a team, you and K-9.
0:24:38 > 0:24:42He does have some...limited uses.
0:24:42 > 0:24:44Although the Blathereen weren't finished yet.
0:24:44 > 0:24:49They are certainly persistent, you have to give them that.
0:24:49 > 0:24:52We meet again, Miss Smith.
0:24:52 > 0:24:55Oh, why don't you just go home?!
0:24:55 > 0:24:57This is your final warning.
0:24:57 > 0:25:00I didn't want to have to do this, but you leave me no choice.
0:25:00 > 0:25:03I've been dying to say this for ages. Let the hunt begin!
0:25:03 > 0:25:05Mr Smith.
0:25:07 > 0:25:09ALARM BELL
0:25:16 > 0:25:19It is our sense of smell that's highly developed,
0:25:19 > 0:25:21not our hearing!
0:25:21 > 0:25:24The Blathereen had no idea what was going to happen but I did
0:25:24 > 0:25:29and I hated the fact that this was the way it was going to end.
0:25:29 > 0:25:32- That's enough, Mr Smith. - Ah, ah, ah...
0:25:34 > 0:25:36What have you done to us?
0:25:36 > 0:25:40My stomach, it's...
0:25:40 > 0:25:42No!
0:25:59 > 0:26:02There must have been a better way than...that.
0:26:02 > 0:26:04They were going to kill us.
0:26:04 > 0:26:08- I had to do it.- What did you do?
0:26:08 > 0:26:14On their ship, all they did was stuff their faces with rakweed.
0:26:14 > 0:26:16I knew their stomachs would still be full of it.
0:26:16 > 0:26:20The destruction of the undigested rakweed created methane gas.
0:26:20 > 0:26:22It could not be contained.
0:26:22 > 0:26:25So, they farted themselves to death?
0:26:25 > 0:26:28In a nutshell, Master Clyde.
0:26:28 > 0:26:31Harming any living creature breaks my heart.
0:26:31 > 0:26:35The Blathereen were such a disappointment, though. I know
0:26:35 > 0:26:38there are lots of aliens out there who want to work with us,
0:26:38 > 0:26:41to be friends. The trouble is, so many of them don't.
0:26:41 > 0:26:44We just have to go on compiling files about the ones who come here
0:26:44 > 0:26:46with conquest on their minds.
0:26:46 > 0:26:48To conclude, Sarah Jane.
0:26:48 > 0:26:52Uploading three new entries into the Alien Files, as a permanent record
0:26:52 > 0:26:57for all to learn about these deadly threats to Earth's safety.
0:27:02 > 0:27:07The Slitheen, untrustworthy scavengers with a ruthless streak.
0:27:07 > 0:27:09They will deploy extreme cunning
0:27:09 > 0:27:12in the pursuit of money-making by infiltrating other planets.
0:27:12 > 0:27:15Beware their ability to occupy the bodies of others
0:27:15 > 0:27:18using compression field technology.
0:27:19 > 0:27:24The Blathereen... Most of them may seem peace loving
0:27:24 > 0:27:28but some elements of this gluttonous clan can be even
0:27:28 > 0:27:30more devious than the Slitheen.
0:27:30 > 0:27:36They may appear trustworthy but take what they say with extreme caution.
0:27:36 > 0:27:40and do not accept gifts from them under any circumstances.
0:27:42 > 0:27:46Rakweed. A seemingly harmless but potentially deadly plant.
0:27:48 > 0:27:51Fast growing and highly infectious.
0:27:51 > 0:27:54It can induce coma and death.
0:27:54 > 0:28:00Remember, drowning out the sound it makes is the only way to destroy it.
0:28:00 > 0:28:04This is Sarah Jane Smith logging off after Alien Files update.
0:28:04 > 0:28:08I sincerely hope you never have to use this information but, if you do,
0:28:08 > 0:28:11I wish you all the good fortune in the Universe.
0:28:11 > 0:28:14Subtitles by Red Bee Media Ltd
0:28:14 > 0:28:17E-mail subtitling@bbc.co.uk