Pete, Linc and Julie work undercover in a high school to break up a juvenile car theft ring.

A computer dating agency sets up to find very wealthy women and send out a young stud to rip them off.

The squad searches for the assailant behind the attempts on Greer's life, leading to the kidnapping of Julie in exchange for Greer.

Blind author Jenny Wills is viciously attacked on the beach by an unknown assailant, who makes repeated attempts on her life. Unbeknowst to her, he thinks she saw him commit a crime.

A racist town tries to pin a murder on a black man who had nothing to do with it.

Greer thinks a series of hospital drug robberies are inside jobs. The trio poses as hospital staff to solve this case.

A narcotics gang kidnaps Greer's girlfriend, widow of an FBI agent. In trade they want squealer Crowley who is testifying against them.

Julie poses as a singer at a Country Western bar to find out the real reason behind Wild Bill Hannachek's death.

Pete, Linc and Julie go undercover at Sims College to investigate a frat boy's mysterious death. Pete plays a running back, Linc an African exchange student, and Julie the object of desire for the star quarterback.

The Mod Squad sets to work busting an extortion racket run by a self-styled healer responsible for the death of Linc's friend. Julie befriends a wheelchair-bound man paying large sums for empty promises that his paralysis will be cured.

Con artist Admiral Nathaniel Johnson takes on the trio and teaches them the art of the con. They comply and become enamored of the Admirals ways and realize too late they are being conned themselves.

Disturbed handyman kidnaps the daughter of his employer, believes that Julie is the daughter. Ends in a showdown.

While on a motorcycle trip to Mexico, Pete and Linc are detoured by a biker gang into a border town and held hostage along with all of the town's residents. The gang refuses to leave until they find out who in the town killed two of their members.

Julie, Linc and Pete attend a dune buggy race where a pickup truck blows up, killing a young man Julie had just met. The trio then investigate the incident, suspecting foul play.