Archie is a very mature child - some would say far too mature! Having grown up with his gran, he seems to have acquired some adult ways - and the kids at his new school find them unbearable. Especially Miranda - the class troublemaker. At first she absolutely can't stand Archie but then she starts to see him as a bit of a project- could she really make Archie into a Troublemaker Extraordinaire? Their unlikely friendship really gets going when Archie needs help to scare off his dad's new girlfriend...