Teacher and students try to survive a gang of bikers. DVD Year 2017 Studio Vinegar Syndrome Genre Suspense MPAA Rating R Color Color Runtime 90 Animated Live-Action Full Synopsis Ms. Tenney Brenda Fogarty and a group of summer school students are on a camping trip in the desert to study ancient native cultures and to hike through the Grand Canyon. But when their bus breaks down in the middle of nowhere, a trio of bikers, led by the demented Al Zalman King finds them and tricks them into heading out to an abandoned farmhouse. Fearing for their lives, the girls and their teacher try to survive the night and the short tempered, psycho biker Al. Director Earl Barton Cast Earl Barton; Zalman King; Brenda Fogarty; Robert Gribbin; Dina Ousley; Cathy Worthington