Archie the cat, Sparky the mouse and Flo the bird may be robots with special high- tech skills, but they are obsessed with the TV show The Pet Factor - where talented real pets show off and compete for top prizes. When auditions for the show come to town, they get their human friends - children Jack, Anya and Sophie - to smuggle them into the studios to watch. But pets tipped for stardom are going missing! When Sophie is given a warning to keep her cat out of the semi-finals, Archie volunteers to dress up and act like a real cat in his place. But can a robot be convincing enough as a real animal? And when Archie is pet-napped, how are the others ever going to rescue him?