T.C. Callaway marries Chris Kelly and takes over command of the bike patrol. He hires four young new recruits, and their first case takes them undercover to a college campus where a chemistry professor is moonlighting as a manufacturer of methamphetamine, and his daughter is involved with students and bikers who are distributing the drugs.
Jamie is slipped some G.H.B. and thinks she may have been date-raped. Two shockjock radio talk hosts take an interest in Bobby Cruz' 15 year-old sister, Theresa. After Cory finds out she's been promoted to sergeant over her best friend, Chris, she also discovers she's pregnant.
Russ Granger saves his best friend's little sister from a life of underage porn, while Monica is offered money to pose for Playpen Magazine. Cory informs Doug of her impending pregnancy, but gets a less than enthusiastic response from the father of her child.
Jamie goes undercover and befriends a fifteen-year-old after he witnesses a murder. Monica Harper's sexual involvement with Commander McKinnon escalates. As their on-again, off-again relationship progresses, Bobby Cruz discovers McKinnon's abusive nature and helps Monica trap him into backing off.
Jamie is attracted to a 20-year old martial artist who saves her from a gang attack. After a series of homicides that Chris is working on point to the martial artist as a suspect, he commits one last crime and is never heard from again. Russ and Bobby compete for the affections of a sexy French film star who's being stalked while in Santa Monica to promote her latest movie.
After a series of college kids are hurt for not paying a bookmaker, Russ goes undercover at Pacific University. His own gambling problems are brought to the front as he gets involved with bookmakers, college-age gamblers and a star basketball player who's tempted to shave points.
After a series of murders in a female prison, Chris goes in undercover in chains while Bobby is placed inside as a prison guard. Monica uses the opportunity to tempt T.C., her next door neighbor, into a sexual situation.
T.C. Callaway befriends Kenny Slaughter, an up and coming champion surfer who is being pressured by Rip Cutter, a ruthless manufacturer of surfboards. Monica, being undercover with T.C., evokes jealousy from Chris, while the others pool their money to see who can bust the dumbest criminal among the mob at the Surf Week.
Like every year, the police is keeping an eye on college students as the hazing tradition dictates 'Greek' fraternity pledges to do all kind of dares, legal or not. When two boys fail one, and are punished on their knees by a butt-roasting paddling line, which the frat's president sends them trough a second time in order to impress his father, they are determined to succeed the illegal next dare, and neither talks when it lands one of them in hospital. More drama is to follow...
After hitting a deaf person on the boardwalk, Cory is forced into working with Monica, tracking down an illicit ring of deaf beggars, controlled by a ruthless 'King.' Bobby Cruz is swapped into the horse patrol and pursues a gang of kids terrorizing the boardwalk with a potato cannon.
The woman who is responsible for the deaths of Bobby's parents has returned to Venice Beach and Bobby is convinced she's involved in an illegal smuggling trade. I.A. pressures Jamie to spy on officers at Pacific Blue by holding over her head a dark secret from her past.
Victor Del Toro, the Pacific Blue member who following the death of his fiancé, turned in his badge and is drowning his sorrows with alcohol. When he foils a robbery, he takes the robber's gun and is about to shoot himself, when he sees a woman. He learns that she has a daughter who was taken from by her daughter's biological father and refuses to let her see her. So Victor helps her find her daughter even if it means breaking the law and using his friends. Bobby thinks there's something odd about Victor.
While Bobby Cruz is undercover working the door of a trendy nightclub, a rock musician dies on the front steps. Monica Harper joins him undercover, but grows concerned when Bobby discovers that the nefarious club owner's girlfriend is his old flame, singer Rita Bunuel. Things become more complicated as they rekindle their romance under the nose of the dangerous drug-dealing nightclub owner.
Former "Partridge Family" cast member Danny Bonaduce stars as fallen teen idol Johnny Osiris, star of a 70's television series, who's now down on his luck and taken to robbing stores on the boardwalk. His fame is rekindled when the media learns that Johnny O has teamed with another criminal. Chris and Cory chase their former teen idol , who is being protected by his television sister (Susan Olsen of the "Brady Bunch"), his record-producer father (Adam West of "Batman") and a high profile defense attorney (Erik Estrada of "ChiPS").
The return of corrupt SMPD detective Perry Marcus, who is again using a band of teenagers to set up high-level drug dealers. Among the group of runaways is Jamie Strickland's estranged sister, Jennie. Jamie confesses that it was she who killed their abusive father before he had a chance to continue his ways with Jennie. All this happens under the watchful eye of Internal Affairs investigator, Susan Jessup, who's long had it in for Jamie Strickland and the Pacific Blue unit.
The opening of the Scarlet Rose ballroom, scene of Santa Monica's most notorious murder of the late 40's, piques Bobby's interest when he runs across a young woman at the club who bears a striking resemblance to the Scarlet Rose herself. Amid the background of swing dancing, Bobby discovers this woman is the granddaughter of the slain actress. She's returned to solve the mystery, which involves a precious diamond that's been missing for more than forty years.
After a young Mafia lawyer and his wife are murdered in their home, Cory catches up with the unharmed six year old boy who's on the run with his real mother, a stripper with whom the Mafia lawyer had a previous affair. Cory is reluctant to bring the pair to the authorities after she learns that the FBI agent working the case is actually the man that the boy identified as the killer who came to their home.
After an old high school girl friend of Cory's is murdered upon her return to Santa Monica, Cory and the Pacific Blue unit are on the trail of her stalker boyfriend, with the aid of an FBI profiler. Cory is attracted to the FBI agent as they work together on the case, navigating twists and turns that eventually place Cory in extreme jeopardy. Russ Granger, meanwhile, has used his Intel video camera to contact a potential lover, "Cybervixen," on the Internet and is making plans to meet her in person.
When a man who is believed to be some kind of humanitarian is killed the team investigates. Eventually the weapon is found and traced back to a man named Bruce Best and while he doesn't admit to doing it, he hints that he believes he did the right thing. That's when they learn that the man who was killed was into some illegal activities and also did something to someone Best cared about. So Cruz, Strickland, Harper, and Granger decide to cover it up. But someone catches them disposing of the evidence and brings it to T.C. who has them arrested.