S2015 E1 • Lindsey's Mountain Marathon

After weeks of hard training it’s the final part of Lindsey Russell’s Mountain Marathon challenge. Will she manage to complete the 35-mile race across glaciers and skiing down the Swiss Alps?

S2015 E2 • Radzi Shaun the Sheep

S2015 E3 • Episode 3

S2015 E4 • Episode 4

S2015 E5 • Episode 5

S2015 E6 • Episode 6

Radzi Chinyanganya joins diving star 14-year-old Matthew Dixon, and the presenter is challenged to take the plunge from a 10m height. Plus, Lindsey Russell and Barney Harwood meet an up-and-coming racer and compete in a head-to-head driving challenge.

S2015 E7 • Episode 7

S2015 E8 • You Rule!

It is the purple badge special, awarded for sending in a review of a Blue Peter show. And to celebrate, everything in this episode has been requested by you the viewer. One of those requests is for top tips on the world of vlogging.

S2015 E9 • Barney's story writing

Celebrities including actors James McAvoy and Chris O'Dowd, DJ Edith Bowman and author Michael Morpurgo explain their love of books. Barney Harwood also gets an insight into this year's 500 Words story-writing competition. Plus, scientist Greg Foot reveals the secrets behind electricity.

Première diffusion : 2 mai 2015

S2015 E10 • Football

The team launches an FA Cup competition, and are joined by a bunch of football mascots, while Barney Harwood tries his hand at photography at Manchester City's ground. Plus, former Blue Peter presenter Yvette Fielding takes part in a pancake flipping competition to celebrate Shrove Tuesday.

S2015 E11 • Spy School The Elimination

To celebrate the Lunar New Year, the presenters attempt noodle pulling with expert Kampo. For the FA Cup challenge, Barney and Radzi try their hand at football commentary.

Première diffusion : 9 avril 2015

S2015 E12 • Inside MI5 Iggys Birthday

The team are joined by 2014 Britain's Got Talent finalist Darcy Oake as he performs some magic tricks and mind-boggling illusions. Children's book illustrator Nick Sharratt chats about the FA Cup mascot competition and shares some top tips on character design. Plus, the books shortlisted in the Best Story category for this year's Blue Peter Book Awards are revealed.

Première diffusion : 16 avril 2015

S2015 E13 • Lindseys Marathon Challenge Begins

Lindsey Russell and Radzi Chinyanganya dress up as book characters voted by the viewers to celebrate World Book Day. Children's author Malorie Blackman presents a selection of awards, and Henry Winkler - author and star of the Hank Ziper series - is surprised with the show's highest accolade.

Première diffusion : 23 avril 2015

S2015 E14 • Sport Badge 2015 Launch

In aid of Comic Relief, the dance crew Flawless will be in the BP studio, giving a show-stopping performance. Barney, Lindsey and Radzi try all sorts of things to make their faces look funny – and there will be a live, messy, world record attempt.

S2015 E15 • Episode 15

In time for The Voice UK’s live rounds, last year’s winner Jermain Jackman performs his new single. And, for the nervous among us, Barney goes to a theme park to take a close look at just how the rides and rollercoasters are maintained.

S2015 E16 • Hetty Feather and Football

The Harlem Globetrotters bring their basketball skills to the studio, while author Cressida Cowell speaks about The Little Picture Challenge. Plus, Barney Harwood takes on a 10km running challenge with sports therapist Amy Hughes, who ran 53 different marathons in 53 days.

S2015 E17 • Army Adventure

The presenters visit Spy School to meet the eight candidates who were selected to join the Project Petra mission. They are tested on key observational and analytical skills over a series of challenges, and only three can make it as CBBC Intelligence Officers, gaining unprecedented access to MI5. Plus, Louis Pearl joins the hosts in the studio to demonstrate the art of blowing bubbles, and Australian pop band Sheppard perform their latest single Geronimo.

S2015 E18 • Get Your Green Badge

The presenters visit Spy School as three CBBC Intelligence Officers are selected to join the Project Petra mission, while Radzi and Lindsey take on an extreme white-water rafting experience.

S2015 E19 • Backstage at the FA Cup Final

S2015 E20 • Super Powered Animals

S2015 E21 • One Year with Iggy the Puppy

S2015 E22 • Inside Radzis Body

S2015 E23 • Bike Stunts and Dance Challenge

S2015 E24 • Morph Mayhem Tennis Tech

S2015 E25 • Vlogging Boarding

S2015 E26 • Summer Party

Première diffusion : 15 juillet 2015

S2015 E27 • High Flying Lindsey

Première diffusion : 15 juillet 2015

S2015 E28 • Rafting Drumming Making

S2015 E29 • Goblins and Animals

S2015 E30 • Bolt, Farah and Ennis-Hill

Première diffusion : 27 août 2015

S2015 E31 • You Love It

Première diffusion : 3 septembre 2015

S2015 E32 • World Records Chart Toppers

Première diffusion : 10 septembre 2015

S2015 E33 • Flying Canoeing and Reviewing

Première diffusion : 17 septembre 2015

S2015 E34 • Sport Badge Spectacular

Première diffusion : 24 septembre 2015

S2015 E35 • Project Petra Inside MI5

Blue Peter continues the mission to find CBBC Intelligence Officers. Over 5000 viewers applied but only three get the chance to go inside MI5's Headquarters.

Première diffusion : 1 octobre 2015

S2015 E36 • Wolfblood Competition Launch

Première diffusion : 8 octobre 2015

S2015 E37 • America Music - Fire

Première diffusion : 15 octobre 2015

S2015 E38 • America Spies Superheroes

Première diffusion : 22 octobre 2015

S2015 E39 • Halloween Time Travel Gymnastics

Première diffusion : 29 octobre 2015

S2015 E40 • Blow Your Mind

Première diffusion : 5 novembre 2015

S2015 E41 • Children in Need Spectacular

Première diffusion : 12 novembre 2015

S2015 E42 • Drone Racing Iggys back

Première diffusion : 19 novembre 2015

S2015 E43 • Extreme Science and Christmas Make

Première diffusion : 26 novembre 2015

S2015 E44 • Birds, Books & Bricks

Première diffusion : 3 décembre 2015

S2015 E45 • Space Sport Sheep

Première diffusion : 10 décembre 2015

S2015 E46 • A Christmas Cracker!

With Christmas just around the corner, Lindsey and Radzi go head to head in an ice-sculpting challenge. The team take a look back at some moments from the past year.

Première diffusion : 20 décembre 2015

S2015 E48 • World Championship Challenge

Première diffusion : 31 décembre 2015

S2015 E702 • Bike Stunts and Dance Challenge

Barney and Radzi go head to head in a synchronised swimming challenge, and the team are in the garden with Greg Foot to look at the science of extreme bike riding.

Première diffusion : 2 juillet 2015

S2015 E709 • Morph Mayhem & Tennis Tech

Morph creator Peter Lord joins the team in the studio, Lindsey paints a giant ship, and Radzi looks into the court-line technology used at the Wimbledon tennis championships.

Première diffusion : 9 juillet 2015

S2015 E716 • Vlogging & Boarding

Lindsey and Radzi go head to head in a cricket challenge at Lords with England cricket stars Jamie and Craig Overton. Also, the team get tips from internet super-vlogger Zoella.

Première diffusion : 16 juillet 2015