Morton Schmidt (Jonah Hill) and Greg Janko (Channing Tatum) occupy different rungs of the social ladder at their High School. Greg is a popular jock, and Morton is unpopular nerd. Years after graduation, their paths cross again at the local police academy. Morton has the brains, and Greg has the brawn. Finding that they complement each other nicely, a bond grows between the two. Unfortunately their performance leaves a lot to be desired. In hopes of salvaging their careers, a superior decides to assign them to 21 Jump Street, where they will serve under the belligerent Captain Dickson (Ice Cube). They are then required go deep cover as high school students to infiltrate a drug ring operating out of their old alma mater. To their chagrin, high school turns out to be even more of a challenge the second time around.