Thirst

An NCIS case changes from accidental death to murder when evidence reveals that a Navy lieutenant died of forced over-hydration. The team discovered that the victim, Jason Simms, had been drugged with ecstasy, causing severe dehydration; this led him to over-hydrate, causing water toxification. When a second victim, Alcott, is found bound to a tree and also dead by way of water toxification, NCIS realize that both Simms and Alcott had failed marriages, and had been members of outreach programs and targeted by a serial killer.