Thomas the Tank Engine & Friends Season 3 Episode 10
Gordon is smothered in mud, but refuses to be cleaned. So the Fat Controller, as punishment for disobeying orders, orders him to pull trucks, whilst James looks after the Express. But in the end, after Gordon helps James, he learns that “Having a wash down is essential to every engine.”
Episode Title: The Trouble with Mud
Air Date: 1992-04-21