Chuggington (2008) : 2x17

The trainees are having an exciting stunt training session with Action Chugger, when he is called away to do some filming. As he leaves, Action Chugger invites Brewster and Koko to come down to the film set later to demonstrate the skills they have learned. But Brewster gets called on a long run to Tootington and has no time to practise. Koko goes with him to keep him company.