Rescue: HI-Surf

Will, Laka and Em receive a call to rescue an influencer in a wedding dress that gets swept into the ocean while trying to film a new video. Kainalu and Hina discuss setting boundaries within their home, and Mayor Emerson makes good on his word with Captain Sonny. Meanwhile, Will breaks it to Em that his fiancé does not want her invited to their wedding, and Jenn finally agrees to go on a date with Laka.

Sonny, Em, Will and Laka race to the beach to find missing paragliders that plummeted into the ocean by a violent down draft. Kainalu invites Hina to a party with his ex-girlfriend and pretentious high school friends. Jenn doesn't think Laka is serious enough for her, and Em and Will face temptation of rekindling their past romance. Meanwhile, Sonny secretly puts in his notice to retire and recommends Em as his replacement.

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, and Hina and Kainalu receive the responsibility of babysitting his grandkids. Sonny tells Laka he is not ready to become a lieutenant, and Laka does not take the news well and spirals at a bar. Chief wants Kenji to replace Sonny as Captain, but Sonny is stern on recommending Em and calls in a final favor with Mayor Emerson. Meanwhile, Will and Em almost get caught in the act by friends, and Hina and Kainalu become more than roommates.