Scaredy Engines is a Thomas & Friends Halloween episode.
Plot[]
The engines on Sodor look forward to Halloween each year. Not only do they love Sir Topham Hatt's fireworks and see the children's costumes, but they sometimes enjoy Edward's spooky stories, like one about a ghost engine that returns every year to the Smelters in search of his lost whistle.
Sir Topham Hatt sends Thomas, Percy, and Duck to collect a special from the smelters one Halloween night. Thomas delights in teasing Percy about Edward's ghost engine, and when an engine is needed to get another load, Duck volunteers Thomas. Thomas is not so confident when he is all alone, and when he runs into some chains and sets off a whistle, he is petrified and runs away.
Percy is concerned when he cannot find Thomas at the Halloween fireworks display and goes looking for him. He eventually sees Thomas at Tidmouth Sheds and forgives him for his teasing, and they both agree you can be scared some of the time. The two, happy to be friends again, watch the fireworks together.