Thomas and Duck have to learn to work together when they take Harold the helicopter for repair.
The Thomas Way - When Harold the helicopter breaks down near Callan Castle, Duck and Thomas are sent to take him to the Sodor Search and Rescue for repair. Thomas wants to give Harold a tour of the island and show him the sights from an engine's perspective, but Duck insists that there are only two ways to do things: the Great Western Way and the wrong way. Thomas and Duck have to learn to work together. The Switch - When Luke is sent to Ulfstead Castle to deliver stone he meets Millie, the Earl's private narrow gauge engine. The two engines compare jobs, boasting how much they like their own work, and so the Earl agrees to let them switch jobs for the day. By the end of the day, both engines are firm friends, but agree they like their own jobs better.