The island is struck by a rash of thefts carried out by an engine whose motives are more complicated than greed.
Tropes featured in this episode:
- Big Damn Heroes: Thomas and Lilly, as Wendell to a lesser extent.
- Black-and-White Morality: Joey has this, unfortunately.
- Jerkass Ball: Mr. Starr claims that he doesn't believe Thomas because he can't afford to; however, he sounds like he genuinely doesn't believe Thomas, showing how quickly Mr. Starr jumps to conclusions.
- Karma Houdini: Mr. Starr due to him jumping to conclusions. Thomas mentions he has plans to tell him off but we never see it.
- Recycled Plot: To the TUGS episode "Pirate."