21 Jump Street is an American crime drama series that aired on the Fox Network from April 12, 1987 to April 27, 1991, with a total of 103 episodes. The series focused on a squad of youthful-looking undercover police officers investigating crimes in high schools, Colleges, and other teenage venues.

Created by Patrick Hasburgh and Stephen J. Cannell, the series was produced by the studio Stephen J. Cannell Productions in association with 20th Century Fox Television. The show was an early hit for the fledgling Fox Network, and was created to attract a younger audience. The final season aired in first-run syndication mainly on local Fox affiliates. It was later completed in rerun syndication on the FX cable network (a sister company to Fox) from 1996 to 1998.