Thomas's Scary Stories

Thomas's Scary Stories is a 2010 Halloween special that premiered on NBC after Thomas: Gordon Returns.

Plot
Halloween is Thomas's favorite holiday, and this year he is planning a night of frights — all done engine-style. Instead of the usual tricks or treats, Thomas challenges Percy, James and the other fairy tale creatures to spend the night in Lord Finfwack's abandoned castle of Locket, while telling scary stories. The last one to be scared wins, and is crowned King of Halloween.

Thomas's first story is about Sir Topham Hatt getting possessed by a demon, so Thomas has to go inside Sir Topham Hatt's brain using a special spell to defeat him.

Next, Percy tells the story of last Halloween when James told them about the story of The Haunted Diesel.