Helena needs a den to help her reach for the stars.
Lauren revisits the train, magical library, community and plane dens from past series.
JB and Storm find out about quad bikes, mazes, wood carving and breakfast cereal.
Steve Backshall meets a shark that is a master of teamwork - the blacktip shark.
It's the Blue Peter Children in Need Spectacular with Pixie Lott and the RAF Falcons.
The Icicles have made it to the World Synchro Championships and head out to Canada.
Steve Backshall heads to Canada to learn about the sixgill shark.
Steve Backshall reveals the supersucker of all sharks, the nurse shark.
Dr Chris and Dr Xand reveal how your bones grow to make you taller.
Izzy has one last chance to represent Team GB at the Olympics.
Steve Backshall meets the snappiest shark in the seas, the lemon shark.
Documentary about a teeneger trying to host a prom for kids too ill to attend their own.
Fundraising Friday hits Our School, and everyone acts strangely.
Josh and Kloe are preparing for the biggest competition on the British calendar.
The Lifebabble team talk about bullying and share their own experiences.
It's day one of national auditions and the top 50 dancers from regionals battle it out.
The staff and students offer advice on what to do if you encounter bullying at school.
Newly formed duo Josh and Lucy just can't find the chemistry they need.
Steve Backshall meets the hammerhead shark, a shark with some seriously super senses.
Ricky and Leah talk to children about bullying in front of an audience.
It's the last chance for the auditionees to make it to the Nationals.
Steve Backshall reveals his top ten favourite sharks.
Regional auditions continue - with only 50 places up for grabs, the pressure is on!
Steve meets a night-time ninja - the whitetip reef shark.
Steve Backshall tracks down the ultimate aquatic athlete - the blue shark.
Blue Peter's four-legged friend Iggy is back in the studio.
Josh, Kloe and Beccy head to Latvia for an important international competition.
This year's fundraising project is in aid of a charity that builds schools in Kenya.
The Blue Peter fan club has taken over, with Sophia Grace performing live in the studio!
The doctors find out why blood rushes to your head when you are upside down.
Vlogging sensation Ali-A helps fashion-mad Molly change her parents' 'Old Banger' forever.
Is the school haunted? Year seven get the chance to find out for themselves.
Documentary following YouTube vloggers Max and Harvey as they perform at Bestival.
Radzi begins training for his Children in Need Free-Fall challenge.
Documentary following YouTube vloggers Max and Harvey as they travel the UK.
The ice stars pull together for some sensational Hollywood-themed performances.