Five high school students from different walks of life endure a Saturday detention under a power-hungry principal (Paul Gleason) . The disparate group includes rebel John (Judd Nelson), princess Claire (Molly Ringwald), outcast Allison (Ally Sheedy), brainy Brian (Anthony Michael Hall) and Andrew (Emilio Estevez), the jock. Each has a chance to tell his or her story, making the others see them a little differently -- and when the day ends, they question whether school will ever be the same.