Sean puts his lifeguard team to the test by first making them dive off a dangerous looking cliff, and then, making them swim back 3 miles from shore. However, the real test occurs during the swim when they must rescue passengers of a sunken boat. As the lifeguards move in, new roommates Kekoa and Jessie instantly clash. Mitch saves a Hawaiian girl from secondary drowning. Arriving in Hawaii with the scarab, Newmie springs into action after an explosion in the water. Allie finds employment as a helicopter pilot for a sightseeing tour. Jason meets a Hawaiian native, who tells him of his past and his destiny.
This long-running series follows the adventures of a team of lifeguards on the crowded beaches of Los Angeles County. Veteran lifeguard Mitch Buchannon watches over the younger lifeguards that come and go with each passing season as they keep the beaches safe for vacationers. Frequently he must take action to save them from the raging seas and from the raging tempers that sometimes flare up between the young guards in this stressful job.