Imagine having your teacher staying at your house for the weekend, while you do the teaching and they do the learning - nightmare or dream come true? Kirsten O'Brien and Johny Pitts present the ultimate challenge for Britain's kids and their teachers. Teach must become an expert on WWE wrestlers and immerse themself in a type of underwater hockey called octopush, before facing an exam on Monday in front of the whole class to see if they've been paying attention.