The first 10 of the 20 contenders enter the tent to tackle two challenges.
Harry Hill hosts Biscuit Day in the baking challenge, and the contestants must prepare one of judge Liam Charles' favourite snacks and work on their piping skills.
The young bakers take on two tough challenges set by judges Prue Leith and Liam Charles, including a messy Technical Challenge working with sticky swirls of dough.
The young bakers show off their dessert skills, including Franken-Desserts - a mash-up of two puddings that would never usually be seen sharing the same dish.
The young bakers need to impress judges Prue Leith and Liam Charles with their pastry-plaiting skills, in a challenge that offers the contenders of Heat A their last chance to go through to Finals week.
The second heat of 10 junior bakers enter the Bake Off tent. It's Cake Day and the Heat B bakers take on the tricky combination of multi-coloured batter.
It's Biscuit Day and the Heat B bakers are asked to create a 'biscuit picture of your best day ever' to show off their skills and tell the judges something about themselves
It's Bread Day and the remaining Heat B junior bakers are faced with two tricky challenges. In the technical, they prepare a delicious breakfast using one of judge Liam's favourite recipes.
It's Dessert Day and the Heat B bakers must produce delicious, sweet creations for judges Prue and Liam. The technical challenge is hi-jacked by Harry Hill who asks the bakers to create a unique bake.
It's Pastry Day for the Heat B bakers and their last chance to win a place in Finals week. The bakers are tasked with creating a showstopper based on their favourite meals in shape and flavours.
To celebrate the first day of Finals week, it's Chocolate Day. As the final 10 junior bakers return to the tent, they are faced with a delicious, indulgent technical challenge.
It's the second day of Finals week and the remaining junior bakers must go global - having their skills tested in tricky international challenges. The pressure is on in the technical challenge.
The remaining junior bakers' building skills are tested in Construction Day. For the technical challenge the bakers make a cake that's intentionally the wrong way up.
It's the semi-final, and the perfect time to test the remaining bakers' skills in some of the more challenging areas of patisserie
It's the final, and from the 20 young bakers who entered the tent, only one can be crowned winner. The finalists prepare multiple bakes for a tea party, including inside-out biscuits and trophy cakes.
