Don't Tell Thomas

"Is that part of the surprise?" "That's for me to know and you to find out."

- Thomas and Emily

Don't Tell Thomas is the ninth episode of the eighth season.

Plot
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 Wellsworth, where Thomas discovers a Christmas party is being held especially for him.

Characters

 * Thomas
 * Edward
 * Henry
 * James
 * Percy
 * Emily
 * Harold
 * Toby (does not speak)
 * Gordon (cameo)
 * Annie and Clarabel (cameo)

Locations

 * Tidmouth Sheds
 * Dryaw
 * Wellsworth
 * Maithwaite
 * Three Tier Bridge
 * Bulgy's Bridge
 * Upper Brendam
 * Maron

Trivia

 * Going by production order, this is the sixteenth episode of the eighth season.

Goofs

 * In one shot at the sheds when the engines are discussing Thomas' surprise, Thomas can be seen next to Percy.
 * When the camera turns above Annie and Clarabel, its shadow can be seen.
 * When Thomas is plowing the snow a piece of string can be faintly seen in the snow pulling him along the track.
 * In the US narration, the term "trucks" is used once.
 * When the narrator says that it is time for Thomas to see his surprise, James looks frightened.