Based on an actual incident - In the mid 1970s, a group of high schoolers cut school and take a day trip to a nearby mountain. Robert, the instigator and under-aged, unlicensed driver; Greg, an easy target for Robert's shenanigans; and the girls, Vicky and Brenda, up for anything... anything, paying only lip-service to reluctance. They spend a lazy day high and horny on the mountain. It would be a push-pin moment in their memories if it were not overshadowed by the unearthly and life-changing encounter on the way back down.