Milo and his friends decide to become a part of the actors in Dubois' stage play, but their poor performance forces them to improvise through the play.

Milo, Lofty and Lark are given the responsibility of becoming judges while Judge Jackson is called away to referee a football match.

The exciting world of Grand Prix racing draws in Milo and his friends before they are given the chance to compete themselves by joining Tania Turbo's team.