Makua Rothman

The lifeguards of the North Shore experience the most dangerous ocean conditions the district has seen in years. Sonny assigns Laka as acting lieutenant as Em has the day off and joins Jenn to catch some massive waves. Meanwhile, Kainalu's father pressures him to leave his shift and help him with his campaign over patrolling the beaches. Hina thinks she is ready to back-up the rescue skis, and Laka and Will almost make it through the day when a fight breaks out among locals. Emotions reach a boiling point for Sonny when he experiences another loss.

A morning hangout on the beach almost turns deadly for a group of college kids when two of them get trapped in a collapsed sandpit. Sonny, Will, and Laka race to rescue people stranded after a shark attack. Em catches the attention of Fire Captain Sean Harimoto (guest star Ian Anthony Dale). Will learns if he made the cut for the firefighter job. Hina makes a move with Kainalu. Sonny attends Zion’s memorial fundraiser and attempts to reconnect with his sister for the first time since the funeral.

The investigation into a plane crash and a dead custom agent leads the team to question if the victim was alive before takeoff. Danny finds himself taking in an abandoned dog.