A series of fake rescue calls puts Sean, Jenna and Zack's lives in danger. Jenna replaces Councilman McKenna, giving her the power to shut down the Training Center! JD tries to get Kekoa's father to bless their relationship.
Leigh suspects Sasha, an attractive tourist, of murdering her husband. Betraying Leigh, Jason seduces Sasha with shocking results! Sean is shocked when he discovers the truth about his ex-wife's visit to Hawaii.
Zack is devastated when Sean promotes Carrie instead of him. Zack and Jason befriend a man and his teenage daughter who harbor a dangerous secret. Zack supplies a boat to escape to Maui, but disaster strikes before they get there.
Sean and Jenna clash when she tries to close Baywatch so investors can develop the property. Carrie is afraid she's not lifeguard material after her reluctance to jump into the water from a hovering helicopter.
A teenager's waverunner causes accidents and his father threatens to sue Baywatch for not rescuing him ahead of his victims. JD takes out his personal problems on Sean. Zack relentlessly pursues Carrie while she pursues Jason.
Sean clashes with Jenna. A new love triangle emerges between new recruit Zack and rookie hopeful Carrie, who's more interested in Jason. Sean and new lifeguard Leigh Dwyer confront daredevil Cliff, whose dangerous antics disrupt the Baywatch team.
Mitch goes undercover to stop an ex-Navy SEAL turned eco-terrorist from detonating a deadly underwater explosive device. When Mitch's dive gear floats to the surface, Sean and the team fear the worst.
No longer able to cope with his guilt of surviving the attack on Pearl Harbor, Jessie's grandfather comes to Hawaii to end his life. Can Mitch intervene in time? Kekoa and Sean help a college basketball player learn to swim.
Sean tries to keep his relationship with Jenna a secret. When the team has to rescue swimmers trapped in a filtration tube, Jenna is sucked down a shaft and Sean risks everything to save her, revealing his darkest secret.
Jessie tries to overcome her condition to compete in the Maui triathlon with Dawn as her coach. Allie suspects an agenda behind Dawn's motives. Jason and Kekoa seek a mysterious underwater Hawaiian spirit that lures people to their deaths.
Sean reveals a secret to Jenna that could threaten his job. Allie and Jason fly her helicopter to the big island where they have to rescue four people trapped on a volcanic lava reef.
Allie is terrified she may lose the love of her life when Nick gets the bends in a daring attempt to rescue a mini-sub on the ocean floor.
Allie discovers a rare Hawaiian coin from a ship that sank after the Pearl Harbor attack. Sean lets the team dive for sunken treasure provided it doubles as a training exercise. The deep-sea dive leads to discord, dissent and explosive danger.
The Team hunts men mutilating sharks for their fins. Jason, who's always feared sharks, learns to accept the local tradition that sharks are sacred protectors of the Hawaiian Islands.
Sean is faced with a life-or-death decision during a daring cave rescue in which Kekoa faces her greatest fear. Hobie plans to get married, but Mitch is at odds with his fiancée's obnoxious parents.
Sean threatens to kick Jason off the team after Jason defies his orders and makes a daring rescue. Allie, Dawn and Nick have to save a drowning man and his pregnant wife about to give birth in the ocean.
Jessie and Kekoa battle each other even as they rescue a man stranded behind a waterfall! Sean and Allie search for treasure. JD and Jason help two girls save a cat caught on a boat mast, but wind up catapulting it across the water!
Sean leads Team Baywatch on a daring night rescue in shark-infested waters to save 6 kayaking teens stranded off the perilous Na Pali coast.
After Manny suffers a life-altering injury during a rescue, April tries to save him from himself. Neely meets her match in Alex when she tries to discredit Mitch.
Alex tries to save a diamond smuggler whose partners want him to "sleep with the fishes." Neely makes Hobie a tempting offer that divides the Buchannon household.