Rockford is hired by Larry Kirkoff to find the identity of his parents killer. There are a number of possible suspects including Travis Buckman and Tawnia Baker who were lovers of Mrs. and Mr. Kirkoff respectively. The police actually suspect Larry of the crime, but, lack of evidence prevents them from making a case against him. Rockford's investigation runs him afoul of some pretty bad men who want everyone to go on thinking Larry killed them.
Jim reluctantly agrees to work for Beth Davenport. His job is to help her prove her client, Ann Calhoun, is innocent of the crime she is accused of; murdering her husband Kevin Calhoun. Jim's investigation takes him to the town of Parker, Arizona, where the Calhouns are from. He digs up info someone doesn't want found out and is almost killed trying to return to L.A. Socialites Clyde Russell and Elizabeth Gorman, who were throwing a party the Calhouns attended, are also investigated. Jim's investigation is making someone nervous as another attempt is made on his life.
A woman meets a man on a lonely stretch of highway while Rockford is filming the exchange from a hillside. Jim is working for the woman. Her name is Deborah Ryder and she is being blackmailed by Carl Brego. He has information of her sordid past and ties to organized crime which she doesn't want revealed. Jim is confident he can get Brego off her back, but, things go sour for him when Brego is killed and the police think Jim did it.
Rockford has been hired by Janet Carr to locate her husband Prentiss. He finds him dead in a hotel bungalow in Bay City. It looks like murder to Jim but later when the police investigate they deem it a suicide. Jim is convinced it was murder and begins to question Janet as to her whereabouts. He doesn't know who to trust...Janet appears reluctant to tell Jim where she was and he thinks the police could be covering something up.
Jim is hired by a newspaper woman to find her missing friend, who then insists on tagging along to "help" his investigation. The missing friend had a sordid past, and several of her old friends want to find her just as badly.
Jim travels to Newark, and draws the attention of organized crime and the FBI. The FBI is protecting Jim's target because he is a former federal witness. The target is found dead, and Jim's client has some explaining to do.
Suspecting her ex-lover, Steve, was killed by his wife, a woman hires Rockford. Rockford suspects Steve faked his death, and when he tells her, she stiffs him for his fee and quickly leaves town. Because Rockford plans to get the insurance finder's fee, he follows her to a California mountain town, where it seems everybody - except local artist's model, Marilyn Polonski (Jill Clayburgh) - wants Rockford. gone, ASAP.
Rockford reluctantly takes a unique assignment: a beautiful mystery woman wants him to find her, to see if someone she fears could also track her down. With a check poised to bounce, the ex-con PI needs the retainer to balance his always-challenged checking account. When Rockford checks with a local police department, he worms out a chilling piece of data: she's been dating Denver Mafia capo-regime, hot-tempered Ralph Correll. But the more Barbara Kelbaker strings along Jim Rockford, the more he's charmed into helping the desperate 30 something.
Jim tails a woman just released from prison. She was involved in a robbery of a Marine Payroll. The mastermind of the crime and his henchman follow her as well. They search for the remaining robber who wound up with the loot.
When knowledge of a critically ill convict's hidden fortune comes to light, Rockford becomes involved in helping the con's wife find the treasure before his former partner arrives and demands his share.
Jim's girlfriend suddenly disappears with no clue as to how or why. Lt. Diel thinks Rockford is probably responsible for her disappearance and orders him to stay away from the case. But Jim can't stop until he finds out what happened.
Two former cons hire Rockford to find an old girlfriend. They actually want her valuable pearl necklace and implicate him as the thief. With Angel's help, he'll get the pearls back and square himself with the police.
Jim's old girlfriend, Claire Prescott, phones, and asks him to help give her protection from 2 hoods chasing her. He soon discovers there's a missing undercover cop, which puts him up against an arrogant Cpt. Highland, as well.
John Micelli's an old war buddy of Jim', who's now a fashion photographer. He hires Jim to track down a beautiful fashion model, whom the authorities claim is dead; killed in a fiery multi-car accident, but, he thinks otherwise. As Jim starts to look into this, he runs into several intimidating figure who want to make certain she stays that way.
Charlie Harris, Rockford's former cell mate, is suspected of murdering his rich wife and is on the run. He calls on Rockford to find his alibi witness, a mystery woman with whom he was having an affair.
A cop dies in an accident that his mother refuses to accept. Rocky offers Jim's services free of charge. After begrudgingly accepting the case he discovers that dirty cops might be involved which then pits him against a very angry Lt. Diel.
A race car driver dies in an apparent accident that his mother, an old friend of Jim's, thinks was no accident. It turns out he was part of an insurance scam outfit and they soon have a similar plan for Rockford.