Em takes the day off to spend time with her mom but races into action when she comes across an unresponsive cave diver. Will confides in Vince about his personal anger issues. Meanwhile, Laka searches for a missing local.

While monitoring the beach, Laka and Will notice a toxic smell coming from a van and discover a kid unconscious and surrounded by drug paraphernalia; Em befriends a disabled veteran; Hina finally confesses her feelings to Kainalu.