Bowled Out is the eighteenth episode ever made in Season 4.
An engine shortage has arisen and the only engine available is a Diesel, who insults the engines almost immediately after arriving. The engines are furious, but cannot think of a plan to get revenge. There's no need though, because the Diesel sucks an inspector's bowler hat through an air-intake vent just after starting. Duck and Stepney take his train, and reach Crovan's Gate in record time. Stepney leaves the next day, and while a grand ceremony is held in his honour, the Diesel creeps sulkily away with only two things left to remember him by: a bad smell, and a battered bowler hat.
- When the Diesel arrives, James swaps tracks from the left of Donald and Douglas to the right and then back again.