After he tries to save Tanner from his abusive father, Mitch ends up on the wrong side of the law. Meanwhile, Jessie's irresistible charm makes a stunt pilot's heart take flight.
April suffers PTSD after losing a rescue victim. Mitch and the victim's widow refuse to give up searching for his body. Jessie runs into an old beau who could undermine her future at Baywatch.
A mysterious lifeguard makes rescues around Baywatch, then vanishes. After going over Mitch's head one too many times, Alex gets an annoying new partner.
Cody accompanies Alex on a vacation to Hawaii where she wants to take her autistic 10-year-old nephew, Timmy, to swim with dolphin in the local lagoon. Cody spends quality time with Lani's sister, Callie, a local Hawaiian lifeguard.
Captain Alexis "Alex" Ryker, the conniving CEO of a private lifeguard company, wants to take over Baywatch to expand her private lifeguarding empire. Mitch suspects Alex of setting up fake rescues and recruits Cody to spy on the BayGuard team.
Mitch struggles with Neely's lies and the truth about their shipboard wedding. Cody and April race to save survivors of their plane crash. A tragic turn of events puts April in mortal danger when half the plane's fuselage sinks beneath the Pacific.
Mitch's marriage to Neely falls apart when her ex-husband arrives at Baywatch and they learn the truth about their cruise ship wedding. Cody and April fly to New York, but a frantic rescue effort ensues when their plane crashes during take-off.
After an escalating, heart-stopping chase across a glacier, Mitch rescues Hobie and Leslie from hitman Gavin. Mitch returns to the Dawn Princess with a romantic proposal for Neely.
Mitch and Cody surprise Neely and Lani by showing up on the Dawn Princess. During the stop in Juneau, Gavin finally recognizes Leslie, who takes a clueless Hobie with her in the beginning a harrowing chase…
Mitch uses Hobie to initiate a relationship with Hobie's horseback riding instructor. Cody, JD, and Lani try to make extra cash in a scheme to collect Sea Urchins, but when another diver gets into trouble, Lani puts her life at risk to save him.
After breaking up with Manny, April finds romance with Craig, who is having a mid-life crisis. While working together to catch a trio of wild men on waverunners harassing swimmers, Craig and April's passion heats up.
Mitch learns that a cache of US Marine weapons has been stolen and probably hidden offshore. Mitch and Cody locate a sunken vessel with the arms on board, but before they can confiscate them, they are taken captive.
Prejudice threatens Manny and April's relationship, driving April into Craig's comforting arms. An encounter with sharks leads Craig and April to take shelter in a water treatment plant's intake pipe where they encounter even more danger!
Caroline's truck is hijacked by a young thief who forces her to drive him on a wild getaway chase. Neely reveals a shocking secret about her outrageous actions during her hiatus from Baywatch.
Cody ignores regulations and leaves his tower five minutes early to meet Lani for a hot date. Right after he leaves, a young woman goes swimming and is engulfed by a wave, never to reappear. Cody is tortured by the results of his negligence.
Donna tries to help Neely overcome her addiction to painkillers. Craig Pomeroy shows up at Baywatch to defend the legal rights of an elderly Native American shaman determined to initiate his tribe's traditional death ritual on the Baywatch beach.
The hot Santa Ana winds blow an air of mystery to Baywatch when two sea lions perish in an unexplainable event. Mitch must uncover the cause to stop it from happening again. April is courted by Manny and Hobie, forcing her to choose between them.
Hobie, Lani, April and Skylar are among the trainees competing for a few open slots as Baywatch Lifeguards. Hobie isn't sure he wants to follow in his father's footsteps, but when a vengeful jet skier comes after April, Hobie comes to her rescue.
Young, ambitious and sexy lifeguard candidates compete for a chance to attend Rookie School. Mitch is offered a promotion to Captain and has a tough decision to make. Lani McKensie faces the sinister return of a former lover.
A mysterious, disfigured man whom the public dubs "the phantom lifeguard," is secretly saving people and sending love notes to CJ. When CJ goes missing the team sets out to find her and the “phantom.”