Two animal loving siblins named Boone and Heather Dixon go to different camps each summer and this time they've signed up to Camp Hither, where there's a legend of a living snake-monster that ate the campers. Boone and Heather have been to many camps to not believe in the scary campfire stories, but when the camp has an infestation of snakes, campers are vanishing and the Camp Director, Dr. Crawler seems to be behind it . . . Boone and Heather start to believe.
When Boone sees eight kids being strangled by snake-like vines he jumps into action! But then he gets tangled in the crushing vines, they get saved by Horrors who only introduce them to The Keeper, a.k.a. Dr. Maniac!