Gibbs and Fornell attempt to track down the leader of a drug ring who supplied drugs to Fornell's daughter.

Flashbacks reveal the murder case that first introduced young Gibbs to NCIS and his introduction to young, new-to-America Ducky.

The discovery of two dead bodies leads the NCIS team into the wild world of modern-day treasure hunting.

McGee and his wife Delilah's Bahamian vacation turns into a high-stakes mission when a case NCIS is tracking of a dead escape room manager has ties to the island.

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.

Following a tip about smuggled weapons, Bishop and Torres engage in a shootout in a former sheriff's residence that's now a historical site, only to find themselves locked in abandoned jail cells there.

NCIS investigates the murder of a Navy officer who was killed while driving home a recently released inmate.

When Sloane’s name is discovered in Afghanistan at the site of an abandoned bus with a dead driver, Gibbs accompanies her on a trip to find a group of girls who were kidnapped from the bus.

NCIS dives into the competitive world of food trucks after finding a man frozen to death in the back of one.

NCIS uncovers a secret dogfighting ring, which leads to an unexpected move by one of the team members.

Vance assigns McGee, Torres, and Bishop to Covid compliance duty at a foreign affairs summit, where they discover a link to another NCIS team's murder case.

Evidence from the stabbing of a Marine Sergeant leads Torres to meet his father who left when he was a child.

The team investigates a cyclist killed in a hit and run. Gibbs prepares to testify against a financial advisor who stole millions from his Navy clients.

NCIS tracks a stolen laptop to the uncle of a young boy, Phineas, Gibbs’ former neighbor.

While pursuing a dangerous arms dealer, the team is shocked when Bishop is implicated in an old NSA leak while Gibbs and Marcie realize the killer they've been tracking may be onto them.