Blake takes drastic action against the Headmaster and the gang try and turn it to their advantage, but end up revealing painful secrets that could change everything.

Lizzie wakes up in the Headmaster's efficient future, where life is productive and safe. Can she make everyone she cares about realise this is a trap before it's too late?

It is the final showdown as the gang try to save the prime minister from the Headmaster - but how far will they go to protect their individuality?