0:00:02 > 0:00:09This programme contains scenes which some viewers may find disturbing.
0:00:16 > 0:00:19DOG BARKS
0:00:59 > 0:01:02HELICOPTER ROTOR WHIRRS
0:01:18 > 0:01:21SIRENS WAIL
0:07:19 > 0:07:22HE BREATHES HEAVILY
0:09:35 > 0:09:38HE GASPS
0:11:05 > 0:11:07KNOCK AT DOOR
0:13:38 > 0:13:40Eurgh!
0:21:07 > 0:21:10DOORBELL RINGS
0:21:17 > 0:21:19DOORBELL RINGS
0:23:34 > 0:23:37RATTLING AND BANGING
0:35:35 > 0:35:36KNOCK AT DOOR
0:45:39 > 0:45:43MOBILE RINGS
0:46:58 > 0:47:03Subtitles for the deaf and hard of hearing by Red Bee Media Ltd