Rheneas gets lost on a old island, and has fallen off a old bridge and into a frieght car, then, he flies into a grassy hill, then he gets lost on a lava river. It's up to Thomas to find him.
- Narrated by Pierce Brosnan as Thomas the Tank Engine.
- First (and only) apperence of The Old Island.
- First special to be narrated by Thomas the Tank Engine.