The engines of Sodor are forced to work together in response to a situation that has trapped nearly half of them on one side of the island.
Tropes featured in this episode:
- Recycled Plot: To the TUGS episode of the same name, only with a boulder instead of a tramper.
- Surprisingly Realistic Outcome: Toby's plan to ram Bob the Boulder with three cars of machine parts and four engines pushing them, while proactive, simply aren't big and strong enough to move a boulder that is nearly 3 times their height and much, much heavier than any of them. Many of the cars smash on impact, and Bob doesn't move an inch.Gordon: What a surprise, it didn't work.
- Wham Line:Sir Topham Hatt: I have decided that you shall both remain in operation on Sodor.
