A girl who halfheartedly tries to be part of the "in crowd" of her school meets a rebel who teaches her a more devious way to play social politics: by killing the popular kids.
When recently single Steven moves into his new apartment, cable guy Chip comes to hook him up—and doesn't let go. Initially, Chip is just overzealous in his desire to be Steven's pal, but when Steven tries to end the 'friendship', Chip shows his dark side. He begins stalking Steven, who's left to fend for himself because no one else can believe Chip's capable of such behaviour.
21 Jump Street revolves around a group of young cops who would use their youthful appearance to go undercover and solve crimes involving teenagers and young adults.