The cases of an undercover police unit composed of young-looking officers specializing in youth crime.

21 Jump Street is the headquarters for a squad of police officers who specialize in investigations relating to young people. Each of the Jump St. personnel was selected for their ability to pass for high school or college students, allowing them to operate undercover in areas where it is difficult for regular police officers to blend in unnoticed.—Marg Baskin <[email protected]>