It's time for the annual Halloween festival in Sinful, and Fortune, Ida Belle, and Gertie can't wait to suit up and enjoy the food and activities. But when a dead man gallops through the park on a black stallion and slides to a decapitated stop right in front of Swamp Team 3, they know another festival is about to be turned on its head...so to speak.

Gil Forrest never won any popularity contests and his dramatic and somewhat horrifying ride isn't going to improve his statistics. But since his body was supposed to be tucked away in a funeral home, no one could explain how it ended up on a horse in the middle of the festival. Everything about the set-up is strange and Fortune, Ida Belle, and Gertie suspect there is more to the Headless Horseman ride than just a tasteless prank. And they plan to find out what it is.