Thomas & Friends S04E18 - Bowled Out

Based on the story of the same name from Stepney the "Bluebell" Engine.

Stepney's visit is coming to an end, and a new visitor, a rude and snobbish Diesel, arrives. The stuck-up diesel makes a fool of himself when he sucks an inspector's bowler hat through his air-intake vent just as he is about to take the Express. Duck and Stepney, who has longed for a long run, volunteer in taking the train.