Sandy and Greg are teenagers who go camping, despite warnings not to, with their friends. They soon encounter aliens, who are using the area as a hunting ground.
Teen lovers Bobby and Terry band together with other roller skaters to try and prevent a powerful mobster taking over the land their favourite skating rink sits on, and compete in the Boogie Contest.
Pretending to do research for his newspaper, college student Alex Marsh teams up with the somewhat older Susan Swayze, who he long admired from afar. Susan participates in The Assassination Game, in which every player tries to shoot another with a toy dart gun, until only one remains. While doing his best to win her over, and helping her finding her targets, Alex discovers that this year the Game may be more serious than most contenders realize...
