While off-duty, T.C. confronts a man carrying a gun in a parking lot. The man whirls and fires at T.C., T.C. returns fire, killing him, but the man turns out to be an undercover police officer with a spotless record. When an investigation reveals that T.C. didn't identify himself as a police officer when he approached the man, T.C.'s left with suspension and the possibility he's killed a completely innocent man.
A reformed murderer, CONWAY HEINRIKSEN, struggles to rebuild his life after many years in a mental institution, but his past victims are bent on seeing that the killer will never have peace in his life. Cory's friend, BILLIE, finds compassion towards Conway, but her life is in danger when the psychological warfare by the victims takes its toll.
Two young, overprivileged business school grads are holding raves at a Santa Monica warehouse where underage kids have access to drugs and alcohol. Firm in his belief that these kids are the product of irresponsible parents, Palermo questions his own parenting skills when he finds out his daughter JESSIE attends the raves with her best friend. Meanwhile, Victor gets in trouble trying to protect Jessie from getting found out; Chris is slipped a ""roofie"" by a rave organizer; and T.C.'s declared too ""uncool"" to work undercover.
Victor's girlfriend, LINDA, is witness to a murder by a notorious local drug lord who has been arrested several times, but manages to get rid of any witnesses before each trial. Realizing that he'll lose Linda if she goes into witness protection, Victor proposes marriage, even though it would mean saying good-bye to his career, friends and family forever. Ultimately, Victor goes after the drug lord, forcing a final confrontation.
A trio of heavily-armed and heavily-armored bank robbers holds up a Santa Monica bank. In the resulting shootout, a security officer is killed and Victor is shot. Victor's injury isn't life-threatening, but it makes him the ""butt"" of jokes at the Firehouse as he confronts the idea of his own mortality.
T.C. is outraged when ""The Sandman"", a hitman responsible for the murders of a police informant and an innocent bystander, is released from prison.Against the orders of DEA agent INSPECTOR ENRIGHT (from the episode ""Black Pearl""), T.C. trails the Sandman on his own, hoping to catch him committing another crime. Enright finally arrests T.C. for obstruction of justice. Neither knows that Sandman plans to use T.C. in exacting revenge on the three drug runners who made him take the fall for the informant's murder, and in such a way that he -- the Sandman -- won't even have to pull the trigger...
The truth about Chris' navy career is revealed. Five years ago, Chris trained under a chauvinistic flight instructor CAPTAIN FRANK HAWKINS, whose intentional misinformation caused her to crash her jet. Chris accepted an honorable discharge on the condition that Hawkins never be a flight instructor again. However, Hawkins still is, and a female pilot has just had the same experience as Chris -- except, this time, her co-pilot died. The woman asks Chris to testify on her behalf, bringing up painful memories and fresh anger for Chris as she returns to the Navy base to bring closure to that period of her life.
Following a violent robbery at a cafe, the Bike Squad discovers an abandoned baby. In searching for the mother, they find that the child was part of a black market baby-selling scheme. Cory goes undercover as a pregnant woman to find the baby seller, unprepared for the rush of maternal feelings the case will uncover for her.
A drug dealer T.C. arrested years ago breaks out of jail and kidnaps T.C., dumping him in a trailer buried in the sand underneath a beach. The convict demands ransom from T.C.'s father (ETHAN) and brother (TEDDY), or else T.C. will die in twelve hours. As the Pacific Blue squad searches frantically for T.C.'s location, T.C. tries to find his own way out of his underground prison before time runs out.
The wild ass son of a Romanian ambassador commits crimes on the boardwalk, causing a huge headache for the Pacific Blue team because the father's diplomatic immunity extends to his son. The government refuses to help because the ambassador is taking part in a secret sting operation to uncover illegal arms trading. When the son's crimes become serious, Palermo risks defying the government handlers to keep his beach safe.
All the victims of a recent series of murders had earlier placed personal ads in a local paper. Chris and Cory enter the dating pool undercover, and in the course of the investigation, each meets the ""perfect"" man. When Cory's dream man attacks her (and escapes), Chris assumes her date is safe to pursue a relationship with -- unaware that it is the same man Cory dated, but with a different disguise.
Cory goes undercover to investigate a Hollywood madam's operation after one of her call girls -- who was blackmailing clients -- washes up on the beach. A Hollywood actress whose estranged sister is also a callgirl demands that Pacific Blue help tear her sister from the madam's clutches.
After a nightmare in which her dead mother shoots her in the course of arresting a suspect, Cory is injured in a car accident. As she works to rehabilitate her knee, Cory tries to decipher her mother's warning in the dream: ""Beware the simple things."" She decides it could be a message to quit the force and become a more well-rounded person.
A man is shot point-blank through the heart on the beach. In questioning the man's wife, Pacific Blue learns she hired two women to investigate her husband's suspected infidelities. Believing that the wife ordered her husband killed, Cory and Victor go undercover as a married couple to investigate the private investigators, and find that the women in charge lure men into compromising situations which they then videotape for the wives.
Palermo and Baywatch lifeguard LANI McKENSIE launch M.E.R.I.T. -- a new program putting Paramedic-level care and advanced life-support equipment on the boardwalk alongside the Pacific Blue patrols. One of the paramedics, ALEXA CHOLAK, is Palermo's ex-girlfriend. During a triage situation at a bombed-out building, Alexa violates protocol and performs CPR on Palermo after he's electrocuted. When another woman dies at the scene from internal injuries, both Alexa's career and the MERIT program are threatened.
When JESSIE PALERMO is shot at school, Palermo pulls out all the stops to find out who's dealing the guns to the students. He consults with local gun manufacturer CAVANAUGH, who is mystified that guns without serial numbers could leave his factory. T.C. goes undercover as a substitute teacher at the high school while Chris and Victor go undercover for a sting operation. The squad traces the guns back to the supplier -- KYLE CAVANAUGH, the factory owner's son... and the boyfriend of Jessie's best friend ERICA.
A ""posse"" of overprivileged teenagers lures men from a gay bar, then beats them up. Pacific Blue investigates, but, despite the evidence, can't convict the kids because the victims -- closet homosexuals in high-level occupations -- refuse to testify. Victor goes undercover at the bar, hoping to be the posse's next victim.
Victor and Cory investigate the murder of a drug company vice president who worked with local free clinics to get discounted medicine. They discover that a major pharmaceutical company is distributing inferior imported drugs to local clinics and drugstores that minister to the poor.
When Chris and Cory apprehend one of the F.B.I.'s Ten Most Wanted, his accomplices seize the Firehouse, taking Chris hostage along with her father BROLIN JORGENSON and civilians. Outside, Palermo, T.C. and Cory plot to free the hostages as Victor, trapped inside during the takedown, secretly works to catch the criminals.
Chris is plagued with guilt and self-doubt after failing to apprehend a trio of vicious drug-infested jewelry store robbers. She left what she assumed to be a secure crime scene to give T.C. backup as he pursued a fleeing suspect. But a third robber was hiding, and all three criminals escaped. After a store manager is killed in a subsequent hold-up, Chris wonders if her affair with T.C. is affecting her decision-making skills. In the end, Chris makes a snap decision to stay behind and provide back-up for Palermo when their fellow officers rush to a what they believe is a robbery-in-progress, but which is actually a decoy. The decision saves Palermo's life, renewing Chris' faith in her instincts.
Pacific Blue tries to figure out why two robbers are holding up a chain of upscale clothing stores since the shops don't carry much cash. In actuality, the store robberies are a cover for FRANK KOVAC, the bodyguard of a prominent businessman (RUDY RIGAS) who has ordered Frank to get back his soon-to-be-ex wife's diamond jewelry. Frank steals the necklace while the wife is shopping at the shop. But Rudy does not know that Frank and his wife plan to double-cross him so that they can run away together.
The squad investigates the ""Letterhead Beatings"" in which several people have been assaulted, tied to their beds, and the first letter of their last names is carved into their foreheads. Palermo is certain there is a message here, but his inability to solve it in time to prevent further victims compounds his burn-out. When the letters add up to spell A-L-E-R-M-O, the solution appears. Palermo realizes the attacks are personal.

