It's the last show in the series - and the big night of year 7's Strictly competition. There are several key contenders dancing for a chance to win the special glitter ball trophy, among them Alojz, who has come a long way in his first term at secondary, Michael, who loves dance but didn't think he'd be allowed to perform the kind of street dance he loves, and good friends Roman and Olivia. The students have to face two tough judges in the form of head teacher Mr Jones and special guest from CBBC Hacker T Dog. He's not the only surprise, though. Some of the teachers have been brushing up their dance skills too. Who will be victorious and end the series on a high?