"Percy's Scary Tale" is a Thomas the Tank Engine Halloween special.
Percy has been sent to work with Alfie on Halloween night. During a break, Kelly tells a scary story about a one-eyed truck. Later, after teasing everyone about the story, Max and Monty are sent to dump some dirt. They see a light and, thinking it's the one eyed-truck, run away in fright, but soon feel silly when they realise it was Thomas.