Lucy is due for a vaccination at school and it becomes evident that uncharacteristic though it may be for her, she is dead scared. After Mr Whiteside pickpockets Josh's music player and drops it in his tea, Josh uses Brian and fixes everyone's electronics for £5. Mr Whitside also asks him to fix his. Brian ends up destroying everything, including Mr Whiteside's gadget! Sophie gets into photography and pursues all the kids around the house in attempt to get some candid shots. But when she takes it upon herself to capture Lucy's fear as she waits for her injection at school, she unwittingly motivates the kids to turn the tables on her. Brian, fed up of always being criticized for his behaviour, decides he is only going to do as he is told and adopts an attitude of total subservience. But he can't anticipate how complicated it can get when he tries to obey orders from one person, especially when that person is Josh.

Brian embarks on a miniature crime spree, ordering Eddie to steal all of the cakes he can get his hands on. Meanwhile, Sophie tries to become the perfect mother. Sophie bakes the best cake in the world for Dan. Brian wants it – and tries to persuade Eddie to help him steal the big creamy pile by murdering Sophie.