A group of high school students in 1980 faces various social struggles. Wealthy "brain" Lindsay wants to rebel. Her geeky freshman brother Sam and his two friends are targeted by a bully.
When Mr & Mrs. Weir go out of town for the weekend, Lindsey hosts a keg party. Sam, Bill, and Neal, worried that the party-goers will get too rowdy, substitute a keg of non-alcoholic beer for the one the freaks have on ice.
Halloween doesn't go as expected for Sam, Lindsey, or their parents.