Hawaii Five-0 (2010)

S9E13 Ke iho mai nei ko luna (Those Above Are Descending)

Adam, Junior, and Tani embark on a journey to the depths of the Pacific Ocean, where they find themselves entangled in a murder investigation at a secluded underwater research facility. Tensions rise as they realize that the perpetrator could still be lurking among them, heightening the stakes and urgency of their mission.