The second in-name-only sequel to the first Meatballs summer camp movie sets us at Camp Sasquash where the owner Giddy tries to keep his camp open after it's threatened with foreclosure after Hershey, the militant owner of Camp Patton located just across the lake, wants to buy the entire lake area to expand Camp Patton. Giddy suggests settling the issue with the traditional end-of-the-summer boxing match over rights to the lake. Meanwhile, a tough, inner city punk, nicknamed Flash, is at Camp Sasquash for community service as a counselor-in-training where he sets his sights on the naive and intellectual Cheryl, while Flash's young charges befriend an alien, whom they name Meathead, also staying at the camp for the summer.
After he transfers to a new school, Hadley is victimized and ostracized by his too-cool classmates. To prove his worth, our hero takes up wrestling, and before long he’s the school champ, thanks to the input of coach Ball, a washed-up alcoholic who finds redemption through Hadley’s example.
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...