21 Jump Street, Business as Usual

S4 E1 • 46m • HDTVPG

Unsatisfied with the final outcome of the case, Booker reopens his last investigation.

S4 E2 • 47m • HDTVPG

After a series of beatings, Hanson and Penhall go undercover in a popular college bar.

S4 E3 • 46m • HDTVPG

Hanson goes undercover in a night club suspected of selling drugs.

S4 E4 • 46m • HDTVPG

Penhall falls for a woman suspected of involvement in a Central American baby-smuggling ring.

S4 E5 • 46m • HDTVPG

A principal crosses the line while trying to clean up his inner-city school.

S4 E6 • 46m • HDTVPG

Hanson and Penhall go into a high school to investigate an arsonist.

S4 E7 • 47m • HDTVPG

The squad probes neighborhood break-ins blamed on affluent teens and a security firm.

S4 E8 • 47m • HDTVPG

Undercover police officers fight crime in L.A. schools.

S4 E9 • 47m • HDTVPG

A teenage hit man flees as Hanson and Penhall close in.

S4 E10 • 46m • HDTVPG

A tip from Booker spurs Hanson, Penhall and Ioki on the trail of mutual foe Raymond Crane.

S4 E11 • 47m • HDTVPG

During a burglary investigation, Hoffs meets a teen she suspects is a victim of parental abuse.

S4 E12 • 46m • HDTVPG

Ioki meets a student whose life was torn apart after he turned in his family for drug abuse.

S4 E13 • 46m • HDTVPG

Hanson, Hoffs and Ioki try to discover who is making synthetic heroin and experimenting on people with it.

S4 E14 • 47m • HDTVPG

Hoffs and Fuller go under cover at a high school to find a murder witness.

S4 E15 • 47m • HDTVPG

In the 21st century, a police cadet interviews the aging members of the former Jump Street squad.

S4 E16 • 47m • HDTVPG

Hanson is asked to witness Ronnie Seebok's execution.

S4 E17 • 46m • HDTVPG

Hanson and Penhall investigate the death of a college basketball star.

S4 E18 • 47m • HDTVPG

Hanson and Penhall investigate a school paper bombing and end up on a romantic mission.

S4 E19 • 46m • HDTVPG

Hanson and Penhall go to El Salvador in search of Penhall's missing wife.

S4 E20 • 46m • HDTVPG

Hanson and Penhall discover a teenager who has kidnapped her baby sister.

S4 E21 • 46m • HDTVPG

Hoffs poses as disabled to investigate the rape of a wheelchair user.

S4 E22 • 47m • HDTVPG

Penhall infiltrates a neo-Nazi group while Hoffs and Ioki investigate a group that opposes them.

S4 E23 • 46m • HDTVPG

Each officer relates to an investigative reporter his version of an attempt on a senator's life.

S4 E24 • 46m • HDTVPG

A father kidnaps one of coach Penhall's Little League players.

S4 E25 • 47m • HDTVPG

Penhall is transferred to the 43rd precinct and ends up working with dirty cops.

S4 E26 • 47m • HDTVPG

Undercover police officers fight crime in L.A. schools.