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.
A drugged-out drifter torches Eddie's lifeguard tower which leads the team to discover an illegal, lab distributing a new drug. Mitch and Thorpe try to convince the city board to buy wave runners in order to optimize their ability to save lives.
Reports of a coming storm and enormous waves bring painful memories for Mitch. Meanwhile, Kaye tries to persuade the parents of a deaf girl to send her to sign-language school.
Drug lord Mason Sato is released from prison and determined to seek revenge Mitch Buchannon, who helped send him away. When Sato kidnaps Hobie and Kaye, Mitch and Sato end up in a samurai-style fight to the death.
Eddie slips on sand and hits his head on the tower ramp. When he regains consciousness, Eddie finds himself on an island with Gilligan, Mary Ann and the rest of the castaways.
Mitch and his ex-wife Gayle reconnect at their twenty-year high school reunion with unforeseen results. Eddie discovers an abandoned baby under his tower with a note imploring him to take care of it for 24 hours.
Mitch falls for the beautiful woman he saved from drowning after she drove her car off a cliff, unaware that she's a cold-blooded murderer and con artist who was attempting to dispose of the murder victim of her latest scam when Mitch rescued her.
Eddie is suspended from Baywatch over the statutory rape charge. He feels abandoned when no one believes his innocence pleas. Meanwhile, the reckless, paraplegic Turner, wanting to win Megan back, tries to impress her by hang-gliding off a cliff.
Eddie is arrested for statutory rape after a teenage girl lies about seducing him in his tower. Meanwhile, Eric Turner, bitter about the paralyzing accident he suffered as a lifeguard, returns to Baywatch to reconcile his relationship with Megan.
When a fishing trawler mysteriously sinks, the “Creature in the Bay” is thought responsible! Mitch, Devon and Captain Thorpe set out to prove there is more than meets the eye behind this Creature's mysterious attacks.
'Nightmare Bay, Part 1'' - Mitch rescues an underwater photographer that appears to have been attacked by a Sea Creature in an underwater cave, resulting in a media frenzy. Shauni rescues a young girl in the ocean then has to rescue her family from drowning.
A massive earthquake destroys Baywatch headquarters and leaves Gina's life hanging in the balance. Meanwhile, Cort and Craig are trapped in the ocean. And Eddie is the only one left who can help a pregnant woman going into labor.
Craig, Mitch and Garner go for a weekend hang-gliding trip, but Mitch has a serious accident, and ends up facing death before the fangs of a rattlesnake! Cort reacquaints himself with a woman who has a shocking secret.
Cort promises to come up with $10,000 for a nursing home, but he needs Mitch and Craig's help to compete in a water-skiing race with a big cash prize. Shauni's traumatic fear of the ocean after Jill's death threatens her future with Baywatch.
A local restaurateur puts up a $25,000 bounty for the largest shark caught during the weekend's Shark Derby he's sponsoring. To attract more sharks, he illegally chums the waters, drawing hundreds of sharks uncommonly close to shore.
After losing his rookie partner in the mysterious rescue of what he thinks is a ghost, Eddie gets unwittingly caught up in a 70-year-old legend. Meanwhile, Hobie attempts to help a friend find a new home for her dog.
Eddie warns Shauni that her new boyfriend Andrew is not a good guy. She ignores Eddie until Andrew gives her a black eye. Meanwhile, Craig and Mitch must stop an out of control party boat before it crashes into the crowded Santa Monica pier.
While housesitting for Craig and Gina, Eddie takes in a runaway whose life is threatened by her mobster boyfriend. Meanwhile, Trevor enters Baywatch rookie school to become a certified LA County lifeguard.