Christmas Eve, for the engines, it's the busiest day of the year and trouble from the trucks is the last thing they need. To make matters worse, a snowstorm threatens to shut down the line.
This episode contains examples of:
- Christmas Episode: The same as the previous episode.
- Mythology Gag: Thomas describes how Donald and Douglas fought the snow by going back to back with a truck between their tenders, referring to "Thomas and the Missing Christmas Tree".
- Synchronous Episodes: This episode takes place during "Identity".
