A local business owner organizes a shark derby but the event quickly spirals out of control and leads Jill to run into the water to save a little boy but then is attacked by the shark. She is saved by Mitch but later dies from a blood embolism.

An underwater photographer is attacked and more than a few people believe a sea monster is responsible. With the hysteria over the 'sea monster', Mitch and his fellow lifeguards are determined to get to the bottom of the mystery. Shauni's work as a lifeguard leads to conflict with a bunch of locals and her father but her father has a change of heart after he learns more about what she does.

Harvey is feeding off the local panic, making a small fortune selling ""Creature in the bay"" T-shirts. Just when things start to calm down, the situation escalates when a fishing boat catches something huge in its net, and is pulled underwater by the mysterious entity below the surface.

Kaye Morgan introduces a deaf girl to sign language, while Mitch confronts a terrifying childhood memory and Hobie a fear of waves.

The Baywatch crew crack a seaborne drug ring, and Ben finds love with an aging movie star.

Mitch rescues a diver trapped 90 feet below the ocean surface, but almost dies while experiencing the effects of decompression sickness.

Matt drives his motorcycle on the cliffs above Malibu and challenges Hudson; Mitch trains to beat Stephanie with Garner as his coach.

Mitch and Stephanie discover a dead man on some rocks; C.J. meets a couple on their honeymoon named Dennis and Arlene; unfortunately Dennis falls in love with C.J. and ends up deceiving both her and his wife.

C.J. and Stephanie go to Catalina for their women's weekend, but the trip does not go according to plan; Hobie and Mitch agree to hire a housekeeper.

A murderer escapes from prison; Kilmer and Stephanie drive to Summer's tower where Kilmer takes them hostage; Hobie makes a periscope for his science class.

Hobie, a cold-hearted Gayle and Ken, Gayle's fiance, get trapped inside Ken's plane when it crashes in the ocean.

Hobie, Gayle, and Ken get rescued from the crashed plane; Matt's father takes back Matt's motorcycle; Jackie has problems with the renovation of her Summer Place.

Stephanie's sister, Caroline, arrives at Baywatch with exciting news, but her joy is shattered by a cataclysmic event. Mitch finds himself at the mercy of a wounded but dangerous adversary.

Mitch must make a difficult decision when he must choose which boy to rescue from the ocean, and the boy he does not save first ends up in a coma.

After witnessing a rescue, a bumbling, ambitious TV producer, named Don Brand, decides to make a pilot movie, titled 'Rescue Bay', based on the life of the Baywatch team which results in chaos from everyone after observing their own "characters" in the show, including Garner's look-alike character, C.J. playing Stephanie's role, and Mitch caught in the middle of it all in playing himself.

A country-western singer, named Jessie Lee Harris, arrives at Baywatch and after C.J. rescues him from a horde of his fans, he asks her to help him find his estranged wife and son living in the area. C.J.'s newest friend, Sadie, hopes to impress Jessie Lee at an amateur night at the local western club in hopes of wining a spot with his band.

Matt is openly unamused by Aussie exchange program lifeguard Logan Fowler's hero complex, nearly running over a drowning man on his way to snatch a female from Matt. Mitch is hitting the breaks on Hobie's maternally sanctioned determination to commit to music. Stephanie has the hots for seismologist Riley Ferguson, but her sister returns homeless after a breakup. C.J. keeps turning up, panicking over a a mild tremor Mitch laughed away.

After Mitch rescues Hobie, he helps Matt commandeer a news helicopter to rescue Jackie from her trailer on the cliff. Hobie also breaks out of his shaken state long enough to help C.J. save the homeless man trapped under wreckage of the pier.

The Santa Ana Winds usher in some strange times for the lifeguards as Caroline helps an insane man who swears his daughter drowned in the ocean, while Mitch is tormented by a meek man, whose fiance remains infatuated with Mitch from a years-ago rescue.

Matt considers fulfilling his dreams of playing professional volleyball when he's given the chance to partner with a pro. Mitch meets the beautiful Tracy, who tries to sell Baywatch a hovercraft. Garner literally chokes when he tries to sing in public. C.J. protests oil drilling in the bay and the lifeguards must rescue the drillers become trapped underwater.

Logan and his friend Gator are determined to beat Matt and Barnett in a rubber ducky contest so that Logan can win the cash prize and not have to marry a rich widow to stay in the country. Mitch's new relationship with Tracy comes under the scrutiny of his disapproving mother but Tracy hides a secret from Mitch.

Logan is traumatized by a phobia from his past involving his late father and fire. Mitch discovers that his late father was actually proud of his career as a lifeguard.

Neely Capshaw, the unwholesome, psycho lifeguard who tried to frame Matt for sexual harassment, arrives back at Baywatch for a job as the switchboard operator and is greeted with a hostile reception from everyone, especially C.J. who personally holds Neely responsible for Matt's departure from Baywatch.

Neely and Cody try to keep the four people alive on the sunken oil rig until help arrives when Mitch, Stephanie and Logan must find away to get into the structure to rescue them before the air supply runs out. At the end, despite Neely's heroic attempts and proving herself to be a very good lifeguard during the rescue, the Baywatch team still resents her presence and plans to give her a hard time. Logan finally gives into Gator's demands for the credit of the swim wear, and Mitch finally decides to join a detective agency.

Logan's problems with Caroline begin when he finds an abandoned baby in his lifeguard tower and mistakenly thinks that it's his that one of his many former girlfriends left for him to care for, and Mitch and Hobie have their hands full after volunteering to watch the infant for a while.

Caroline blames herself after a victim drowns after a nighttime rescue. Spurred on by Neely, Caroline takes a walk on the wild side.

Logan, wanting a new course in life than being a lifeguard, decides to write and direct a low-budget action flick at the beach using a drugged shark as the villain, with Caroline as the star. But things take a unexpected turn when a very great white shark appears and attacks Cody and a number of other swimmers in the area as Mitch and the rest of the squad try to hunt it down... 'Jaws' style, while Logan sees an opportunity to grab for his movie.

A heatwave precedes a visit to the beach by the President of the United States, as Mitch encounters a bumbling Secret Service Agent. Cody faces an audit by the IRS. Caroline thinks no one has remembered her birthday.

The International Ironman Competition is held at Baywatch and Neely sets off a battle of the sexes when she decides to enter the competition.

After rescuing a group of fishermen and tourists from a huge pier fire, Samantha and L.A. fire chief Captain Huntingdon form a rescue firefighting team of six life guards and firefighters, called the Search and Rescue Unit, for such conditions and Cody, Neely, Jordan, and Newman try out for the unit and meet their firefighting counterparts. Their skills are put to the real test when the new group of Cody, Neely, Catalina lifeguard Rick Jenner, and firemen Jessica, Clay, and Terry are sent on their first mission to rescue two men in a partially submerged basement of a fire-ravaged building.

Mitch rescues the life of a talk show host, who then invites him to appear on her show. C.J. is convinced that a stray dog found by her and Caroline possesses the reincarnated soul of the late Stephanie.

While rescuing three inner city youths, Caroline receives help from a mysterious boy who mysteriously vanishes. Sparks fly when Neely is reunited with her ex-husband when she shows up unexpectedly at Baywatch.

A flood of new recruits arrive at Baywatch to try out for rookie school, who include Hobie, Manny, and newcomers; Lani McKensie, a part-Hawaiian, part-Caucasian wanting to be a professional dancer, April Giminski, a naive, design major college student unfamiliar with swimming in the ocean, and Skylar Bergman, April's roommate who wants to become a paramedic.

During the second week of rookie school, April is injured by a bump on the head caused by a mysterious wave runner rider which harasses her, Lani and Skylar and nearly causes her to be thrown out of rookie school. After visiting his home neighborhood, Manny becomes more determined to become a lifeguard than anything else.

Veteran lifeguard John "J.D." Darius arrives at Bayside and competes with Taylor Walsh, an attractive newcomer, for Mitch's old job as lieutenant and Mitch must make his own decision as to which one will be the most eligible one for his former job. Although J.D. has more experience as a lifeguard than Taylor, he is plagued by haunting memory of failing in a rescue at Daytona Beach where he worked some years ago.

On Memorial Day weekend, Mitch, April, and Skylar find a lot of problems on their hands after discovering the dead body of an elderly Navy veteran whose two elderly Navy buddies of his want to give him a proper burial in the ocean.

After learning of Manny's ethnic prejudices originating from the Latino street gang that he used to hang out with, as well as from his mother who also may be prejudice at her son dating a Caucasian girl, an irate April joins Craig on a diving expedition that takes a turn for the worse.

After breaking up with Manny, April sees romance on her mind with Craig, who is experiencing a mid-life crisis over leaving his wife. April asks a reluctant Craig to attend a formal dinner party with her prompting him to seek out advice from Mitch over the situation he is in.

During the first week of autumn at Baywatch with Hobie gone away to college and heavy rainfall in the area, Mitch discovers that his shipboard marriage to Neely is invalid, which worsens things then Neely's ex-husband suddenly shows up with no knowledge of Neely's baby or anything else making Mitch realise that Neely lied to him all this time and she has fully reverted back to her conniving and devious true self.

Mitch, Craig, Neely, J.D. and Newman co-operate with the Coast Guard in rescuing as many people as possible from the waters of the plane crash and fending off shark attacks as well.

Cody accompanies Alex on a vacation to Hawaii where she wants to spend time with her autistic 10-year-old nephew, Timmy, and to show him to swim with dolphins in the local lagoon, which the mute Timmy is afraid to do so.

Mitch, feeling that his life has reached a midpoint from his failed marriage to the absent Neely, goes for a day-long tower swim along the beach and encounters various other problems which include, April and Craig's growing attraction for one another, and reluctant heroes Cody and J.D. refusing to take the credit for saving two girls and a pair of policemen after falling off a pier.

Mitch becomes acquainted with some old armed service friends of an Army parachutist team where he tries to reunite one sky jumper, Tracy McComb, with her estranged Naval officer father who has a terminal illness. Jessie becomes intrigued with skydiving and persuades Mitch to go along with her for a jump, which takes a turn when they are forced to rescue some people from a boat wreck off Catalina.

Mitch's Zuma Beach lifeguard friend, Jake Barnes, learns that his Australian ex-wife has suddenly died. So he, Mitch, Alex, April, Cody, and Jessie go on a trip to Australia where Jake is to meet the eight-year-old son, Terry, that he never knew. Upon arrival, Jake with Jessie in tow, travel to the Avalon Beach Resort Club where Jake meets with Terry and his ex-wife's friend Allie Reese, a helicopter pilot and lifeguard at the beach club, where Jake and Terry seem to hit it off.

While Mitch, Alex, Cody, and April prepare for their race against the Australian lifeguards, Jake must choose between staying in Australia with Terry or returning home without him. But when Terry does not want to leave Australia, he goes missing which prompts Jake, Jessie, and Allie to look for him.

Mitch Bucannon, on leave in Oahu, Hawaii while he sorts out his thoughts during a mid-life crisis (his failed romance with Neely, his mother's recent death, and Hobie living on the East Coast), decides to form an international team of lifeguards in Hawaii called 'Baywatch Hawaii' for saving lives after a rescue of a family on a remote beach in which a little girl is put in a coma after being submerged.

During the first week of training for the new lifeguard team of Baywatch Hawaii, competition between Jessie and Kekoa, as well as Jason and J.D. threaten to turn the tryouts into an all-out war. Jason, at Kekoa's advice, visits an old Hawaiian native to look into his true Hawaiian roots, and Allie takes a job as a helicopter tour pilot to make some extra money for herself.

Dawn Masterson, a lifeguard from Florida and a travelling archaeologist, joins the team and proves almost irresistible to the male lifeguards while she squares off against Sean who tries to find her weakness, while also Dawn seeks her own personal agenda with J.D. whom she used to know.

Sean and the rest of the team risk their lives when they help with the local Coast Guard in a daring rescue to save six kaiakers who have gotten stranded on Kauai's Pina Nova coast. After saving four of the kaiakers, including two in an enclosed lagoon, night falls and the search for the remaining two is called off.

The abrasive Sean tries to get the team, on a week-long holiday in Kauai, from giving into the island's sun-and-fun atmosphere and concentrate on a return to training.

A secret from Dawn's past could jeopardise her position on the team when she gets served with a civil suit from the spouse of a diseased lifeguard from when she was involved in a failed rescue while working as a lifeguard years ago in Florida with J.D.

After a rescue of a man who survived after more than 20 minutes underwater, Dawn and Sean are drawn to the strange and spiritual power of the mind over matter theory which she tries to prove the theory of the mind controlling the body after its other functions have shut down to sustain life.

Sean has his hands full in dealing with Jenna Avid, the new head of the Oahu North Shore lifeguards, who issues some stern recommendations to the team, which is overshadowed later that day when a group of nudist activists, lead by a certain Leesa Strickler, choose the beach near the Baywatch Hawaii headquarters as their place of protest against the establishment which Sean, Jason, Allie, and Dawn have also deal with the media circus that arrives too.

Sean faces a personal conflict where he tries to resist Kekola's flirting advances which leads her, Dawn and Allie to re-examine their own femininity in themselves.

Another long day begins with Sean, Jessie, and Kekola trying to save a woman trapped in an air pocket beneath a coral reef and trying to escape from the dangerous sulphur fumes within the cave. After a rescue of three skydivers whose parachutes open late, Dawn find a number of similarities between one named Jerome, and her ex boyfriend Ryan whom she discovers that they are both the same person.