It is Halloween 1989. Best friends Sam and Josh are trying to enjoy what's left of their final Devil's Night before graduating from high school. However, trouble arises when the two pals and a group of friends take a detour on their way to a rock concert. They find an old abandoned barn and awaken the evil that lurks inside. Now it's up to Sam and Josh to find a way to protect their friends and defeat the creatures that lurk within "The Barn".