California girl Briana just crossed the stage at UH Mānoa, degree in hand and the world at her feet. With her ride-or-die bestie Nadine and her former flame Jonah and his bestie Morgan, the plan is simple: one final, sun-drenched summer in paradise before reality sets in. But the golden haze of Waikīkī is about to darken. When a devastating secret emerges that shatter relationships. a sudden tragedy strikes the group. The celebration turns into a nightmare. As Hawaiʻi 5-0 searches for answers, In a town where the tide hides as much as it reveals, Briana must navigate the notion that everything will change.