Rescue: HI-Surf

College kids get trapped in a collapsed sandpit; Sonny, Will and Laka race to rescue people stranded after a shark attack; Will learns if he made the cut for the firefighter job he has been pursuing.

The lifeguards of the North Shore experience the most dangerous ocean conditions the district has seen in years; Sonny assigns Laka as acting lieutenant; Kainalu's father pressures him to leave his shift and help him with his campaign.

The North Shore community comes together for Rocky's paddle out; Hina thinks about switching districts; Laka, Will and Kainalu try to save a beachgoer that accidentally speared his own foot; romance heats up between Sean and Em.

An influencer gets swept into the ocean while trying to film a new video; Kainalu and Hina discuss setting boundaries within their home; Mayor Emerson makes good on his word with Captain Sonny; Jenn finally agrees to go on a date with Laka.

Sonny, Em, Will and Laka look for missing paragliders that were pushed into the ocean by a down draft; Kainalu invites Hina to a party with his ex-girlfriend; Jenn doesn't think Laka is serious enough for her; Sonny puts in his notice to retire.

Christmas cheer is in the air as the lifeguards prepare for their annual holiday toy drive; while surfing, a local grandpa has a heart attack and is rushed to the hospital; Sonny tells Laka he is not ready to become a lieutenant.

The team races to the rescue in the aftermath of an ATV accident; romantic tensions are high between Em and Will as well as Kainalu and Hina.

Em and Will's relationship struggles as they navigate the return of his fiancée; Kainalu asks Laka for help; the team races to rescue a group of locals involved in a serious accident while riding an inflatable Supsquatch.

The team is on high-alert when a tsunami advisory is sent out following an earthquake. As the state of Hawaii is under an evacuation order, Captain Sonny has bigger issues when Ocean skips school and he can't find her.

Captain Sonny and the Ocean Safety team face their most dangerous rescue yet when a literal minefield is discovered on the ocean floor. Meanwhile, on the beach, a hugely popular influencer will do anything to capture viral content for her massive following.

The team races to rescue unresponsive cliff jumpers; Hina tries to navigate family issues; Will and Em hope to get over each other by rebounding with other people.