Season 4

T.C. Callaway marries Chris Kelly in Las Vegas and takes over command of the bike patrol. After taking Russ Granger and Jamie Strickland, two raw recruits with attitude from the police academy, T.C. co-opts Bobby Cruz, a young Hispanic who has had previous problems with excessive violence while an L.A.P.D. officer, and a young, ambitious, sexy climber named Monica Harper to round out his new young team. 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.

After making a rookie error, Jamie Strickland is drowning her sorrows at a local bar where someone slips her G.H.B. She wakes up the following morning with the possibility that she has been date-raped while unconscious. As her roommate, Russ Granger, helps her solve the case and get her badge back, Bobby Cruz is distracted by two shockjock radio talk hosts who have taken an interest in his wild 15 year-old sister, Theresa.

Russ Granger discovers that his best friend's little sister, Molly, is an underage porn star. After she resists being saved, Jamie goes undercover, hoping to nail the producer. Monica is offered ten thousand dollars to pose for Playpen Magazine, but only if she recruits the other three women from Pacific Blue. Thinking she has them all, Monica goes ahead and poses very provocatively before learning that the others have declined. 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 snitch after he witnesses a murder. But a rogue Narc is controlling the kid, and is ultimately to blame for his death as well as two dealers. Monica Harper's sexual involvement with Commander McKinnon escalates. As their on-again, off-again relationship progresses, Bobby Cruz discovers his abusive nature and helps Monica trap McKinnon 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.

Pacific Blue backs into a college call girl ring after the roommate of the girl Bobby is dating is found dead below a 6th story window. Chris is convinced the death is a homicide. The trail leads to a radical female college professor who preaches hooking as a release for women with abusive backgrounds. Cory McNamara miscarries as a result of stress.

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.

At Pacific University, a fraternity is holding their annual Thrill Week in a house on the Pacific Blue beach. After a series of incidents, Russ and T.C. are sent in undercover to stop abusive hazing which includes sexual harassment for Bobby's sister, Theresa and other women.

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."" We discover Monica knows sign language because her mother was deaf. 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 while she was driving under the influence has returned to Venice Beach. Bobby is convinced she's involved in an illegal smuggling trade and sets out to seek revenge for his parents' deaths. L.A. pressures Jamie to spy on officers at Pacific Blue by holding over her head a dark secret from her past.

After stopping a late-night robbery in a bar, Victor Del Toro, once a member of the Pacific Blue unit, is on the verge of committing suicide on the Santa Monica pier. He's interrupted by a young woman looking for signatures for a petition to regain custody of her six year old daughter, now in the hands of a rich couple. Victor, in an effort to make up for the death of his fiancée, promises to capture the child for the mother. He takes advantage of his old friends and breaks numerous laws in his effort to trade his soul for that of the child, all under the suspicious eye of the new Pac Blue recruits.

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 Bunwell. 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.

A near death experience changes T.C.'s perspective on life after he comes face to face with ruthless home invaders.

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.

The worlds of black and white magic collide after a young girl disappears from the boardwalk. Russ and Jamie enter the world of the occult and have sex after falling under the spell of the dark side.

After a high profile Hispanic leader, JOHN PATRONE, who is trying to bring an end to warring gang factions in Santa Monica is slain by a snipers bullet, our young recruits finds the main suspect is a likeable motorcycle mechanic whose daughter committed suicide a year before. When it is learned she was pregnant by PATRONE, and that he was involved in drug dealing and gun running, it appears that this good citizen took the law into his own hands to bring the man down. By episode's end, Bobby Cruz is arrested for concealing evidence and the three other new Pacific Blue cops are under arrest as well. Cannon Boy, a teenager obsessed with firing himself from a cannon, is pursued on the beach.