Air date: August 29, 2004
The engines plan a surprise party for Thomas to thank him for his work clearing the lines of snow, but they keep the details away from Thomas, who is naturally furious they are not letting him in on the secret. Thomas eventually goes to sulk in a siding, but Harold convinces him to go to a station, where Thomas discovers a Christmas party is being held especially for him.
Tropes featured in the episode:
- Christmas Episode: The episode revolves around the others planning a surprise Christmas party for Thomas.
- Figure It Out Yourself: Regarding the surprise, Emily rudely tells Thomas, "That's for me to know and for you to find out".
- Jerkass Ball: When Thomas asks Emily about the surprise, Emily rudely tells him that's for her to know and for him to find out.
- Locked Out of the Loop: The engines are planning a surprise party for Thomas, and he grows suspicious. Eventually, he gets fed up enough that he runs away, leaving Harold to find him and tell him about the party.
