In the 21st century a young cop hoping to revive the Jump Street program interviews the retired officers who were there when it all started.

Mac goes undercover as a football player when a high school football star dies from an unexplained heart attack.

After seeing a teenager being murdered, Hoffs infiltrates the girl's street gang to find out who killed her.

When a small-town teacher refuses to teach the theory of evolution after his son has a near-death experience, Hanson infiltrates the school to try to discover who's behind the recent burning of the science books.

While investigating the hit and run murder of a high school football star, McCann becomes involved with a cheerleader who has AIDS.

Doug and Joey enroll in a college where good students are mysteriously being turned into criminals.

The Jump Street unit discovers that a boy who was being used as a pawn by his feuding parents faked his kidnapping with the aid of his grandfather to get away from his parents.

Everyone in the Jump Street unit gets blue flu when the police force goes on strike forcing Captain Fuller to team up with a rookie cadet.

Hoffs is suspended from the force when while working undercover in high school she is forced to take a mandatory drug test and the results come back positive.

The Jump Street cops each relate a different version (with the teller as the hero of a film from their favorite genre), to a reporter investigating the foiled attempt to kill a senator.

After finding the missing daughter of a famous reporter, Mac tries to solve the mistery behind the missing.

Penhall and Ioki go undercover as the ""Swark Twins"" to get in with teenage boys working for drug smugglers. Meanwhile, Hoffs becomes romantically involved with the head drug smuggler.

Hoffs and Penhall must deal with a pursuing husband when they are assigned to escort a girl arrested for killing her father when he tried to prevent her from eloping.

McCann joins up to be the partner of a mentally handicapped youth in a school buddy system, to investigate the murder of the boy's former partner.

Doug has a strained reunion with his estranged younger brother Joey when Joey is assigned to the Jump St. team. Doug comes to his aid after Joey is brainwashed into joining a religious cult he was investigating.

McCann infiltrates a group of devil worshipers whose leader has enthralled a teenage boy with her beauty.

Hanson and Penhall infiltrate an exclusive preppie clique to investigate a prank that left a girl dead.

Hoffs, Hanson and Penhall find themselves at the mercy of a defiant gang when all of them become trapped inside a school with out power.

Doug and Joey enroll in a wilderness camp for troubled teams to investigate a murder that happened there and find themselves constantly in trouble with the ex-marine who runs the place.

Doug is seriously wounded while on a case and while the doctors try to save his life he enters limbo where the people he meets there cause him to reconsider his choice of career.

Mac and Joey try to find the responsibles for vandalizing elderly homes. The problem is that one of the prime suspects is the son of Fuller's girlfriend.

The daughter of a policeman who claims her father is sexually abusing her tries to hire Hanson—undercover with Penhall as one of the drug dealing McQuaid brothers—to kill her father.

The Jump Street unit is investigating a counterfeit drivers license ring when Captain Fuller gets arrested for drunk driving.

Hanson contemplates leaving the force and leaves town instead of going to a refresher course at the police academy he and Penhall had been assigned to take after they went drag racing to try to catch a hit and run driver.

Past romances that didn't have happy endings are the subject of conversation at a Valentine Day Eve poker game.