On NCIS Season 18 Episode 6, Bishop and Torres engage in a shootout in a former sheriff’s residence, only to find themselves locked in abandoned jail cells there.

On NCIS Season 18 Episode 5, Gibbs and Fornell’s crusade to find the head of the drug ring responsible for Fornell’s daughter Emily’s overdose comes to a climax.

On NCIS Season 18 Episode 4, McGee and Delilah’s Bahamian vacation turns into a high-stakes mission when the case NCIS is tracking has ties to the island.

On NCIS Season 18 Episode 3, the discovery of two dead bodies in a forest leads the NCIS team into the wild world of modern-day treasure hunting.

On NCIS Season 18 Episode 2, flashbacks reveal the murder case that introduced young Gibbs to a young, new-to-America Ducky, on the 400th episode.

On NCIS Season 18 Episode 1, Gibbs and Fornell hunt down the leader of a drug ring who supplied drugs to Fornell’s daughter, and a body goes missing from autopsy.