While undercover as the McQuaid Brothers at a continuation school to investigate a series of robberies, Hanson and Penhall encounter a 15-year-old girl hiding her baby sister.
Hanson and Penhall head to El Salvador to find Penhall's missing wife and get caught in the crossfire between notorius FMLN guerillas and government forces in the war-tom country.
While investigating a student terrorist organization, Hanson and Penhall end up on a spring break trip, to Florida in pursuit of a suspect in the bombing of the school newspaper.
While on a stake-out watching a house of suspected burglars, Hoffs witnesses a father abusing his family and believes she may have witnessed a murder.
On a tip from Booker, Hanson, Penhall and loki embark on an out-of-town motorcycle trip to bust Raymond Crane, the man responsible fot loki getting shot, Hanson landing in jail and Booker losing his badge.
Hanson and Penhall go undercover at a high school to find a lonely student, guilty of killing a teacher's wife.
While working undercover as a medical student, Hoffs is raped by a fellow student but is reluctant to report the crime.
Hanson and loki face their personal demons when they go undercover to solve burglaries in an exclusive neighborhood.
While investigating a series of fires, Penhall and Hanson meet a student whose psychic powers lead them to an arsonist.
A principal's controversial tactics go too far in his attempt to clean up a decaying inner city school.
When drug-dealing gets out of hand at a prestigious performing arts school, the Jump Street undercover team must join the act.
When the Jump Street cops are on the verge of busting the mayor's son for drug dealing, the mayor steps in and suspends Fuller.
Booker deals with the guilt of knowing an innocent student has been killed because his friends mistook him for a narc.
Penhall and Hanson are assigned to bring a young private back to the Army base before he's charged with desertion.
When a dangerously revealing magazine article about the Jump Street program is written by Russell Buckins, Hanson is suspended and goes gunning for his old friend.
While trying to infiltrate a high school computer club, Penhall is picked on by a bully which prompts stories from each of the cops who were all terrorized by a bully at some time in their lives.
Hoffs learns that her new lover is married and when she tries to break up the relationship he sexually harasses her until she complains to his boss.
Penhall and Booker join an all-state football team to investigate possible criminal negligence on the part of the coach when his star line-backer is crippled for life.
Penhall almost wrings a confession from a falsely accused child molester and must then find a way to help the man overcome the devastation of the false charge.
While Hanson and Booker try to catch a drug dealer, their investigation is impeded by a gang of young vigilantes committed to help clean the streets of crime.