A new lifeguard helps Mitch and the Baywatch lifeguards confront an upsurge in gang activity, and CJ is enamored with a beach magician who nearly drowns during a bungled underwater stunt.
Mitch's impending birthday prompts him to train for an ironman competition, getting swept off his feet by a younger woman along the way. Matt takes a night job to save money for a motorcycle, jeopardizing his coworkers through his exhaustion.
Mitch saves two boys from drowning. But when one ends up in a coma, Mitch suffers from PTSD and is left reevaluating his life as a lifeguard.
Mitch removes a bullet from an escaped convict, only to realize that he and his wife have every intention of killing him. Stephanie's sister Caroline arrives with her fiancé, who becomes the target of an attempted murder.
A prison break gone awry finds Mitch held hostage by a beautiful woman and forced to perform surgery on her escaped convict husband. Meanwhile, Matt and Slade decide to settle their mutual affection for Summer in a daring surfing contest.
Summer has love problems when Slade returns from a world surfing tour to discover Matt and Summer are dating. CJ is persistently pursued by a bungee jumping balloonist. Meanwhile, Garner patrols the beach on horseback.
John D. Cort, Mitch's friend and a former lifeguard, returns to Baywatch where his life undergoes a devastating change. Meanwhile, Hobie meets a very "unique" new friend.
Romance is in the air at Baywatch as Mitch and Jackie's friendship grows more intense, Summer and Matt begin a relationship, and Hobie falls in love with Lauren, a junior lifeguard with a devastating secret.
Mitch finds himself falling for an Italian actress who is being stalked by ruthless robbers. Meanwhile, CJ and Stephanie help Guido pretend to be a lifeguard in order to impress his visiting mother.
An escaped psychopath takes Summer and Stephanie hostage in a lifeguard tower, necessitating a thrilling subterranean rescue attempt by Mitch and Matt.
While on a vacation cruise, the Baywatch lifeguards encounter high seas hijackers, leaving Mitch and Stephanie stranded in the stormy Pacific, and Summer, Matt, CJ and Guido faced with outwitting ruthless killers who have overtaken the ship.
The Baywatch lifeguards set sail on a romantic cruise, only to encounter a dangerous fugitive, who forces Mitch and Stephanie overboard into the stormy Pacific Ocean.
Mitch and Stephanie cope with an odd assembly of UFO enthusiasts camping on the beach in anticipation of an extraterrestrial visitation. Smugglers threaten Summer to recover diamonds they hid inside a surfboard Slade gave her.
CJ and Stephanie travel to Catalina Island for a "girls-only” weekend getaway, only to be distracted by two handsome men, leading to a life and death encounter. When Mitch and Hobie hire a gorgeous Swedish au pair, amorous complications ensue.
A dispute between Mitch's lifeguard career and his father's desire to have him take over the family architecture business becomes intensified by devastating news about the elder Buchannon.
A rock concert and political rally are the backdrop for a chilling assassination plot that finds CJ unconscious on an explosive-laden Scarab heading for the crowded pier.
Summer and Matt face grueling personal and physical challenges in Rookie School, the "boot camp” of lifeguarding, while unusual circumstances force female odd couple CJ and Stephanie to share an apartment.
Jimmy Slade and Matt Brody tangle with a violent surf gang, while Mitch's life is thrown into turmoil when former lover Stephanie Holden assumes co-command of Baywatch headquarters.
A whitewater rafting trip turns deadly when Mitch, Hobie, Eddie, Shauni and CJ are pursued by the murderous miners that killed Mitch's uncle to get his map leading to the "Golden Boot" that Mitch and the others are now searching for.
The mysterious death of Mitch's uncle, and the cryptic will he left, finds Mitch, Hobie, Eddie, and Shauni on a whitewater rafting adventure. Meanwhile, rookie lifeguard hopefuls participate in the annual qualifying swim.