Hawaii Five-0 (2010)

S8E17 Hōlapu ke ahi, koe iho ka lehu (The Fire Blazed Up, Then Only Ashes Were Left)

Adam's quest to dismantle the island's criminal syndicate takes a dangerous turn when the lethal chlorine gas he intended to use as bait is misappropriated. Compounding his troubles, Adam starts to question Jessie's loyalty, leading to rising tensions between them as the stakes get higher.