Episode Title:
The Joke is On Thomas
Episode Description:
Thomas starts a joking spree on a day that Diesel is determined not to run late on. However, Diesel accidentally takes a boxcar rigged to explode with confetti, and Thomas and Percy have to switch it with his real car before it is too late. In the end, Thomas learns that someone has to be in the mood to laugh, while Diesel learns that laughter can brighten up a very bad day.
