When JD's son is kidnapped by an international assassin in exchange for a wanted criminal in NCIS custody, the team frantically tries to get his son back safely without trading in a criminal.

When a U.S. Navy researcher is found dead at a glitzy tech launch in a secret underground bunker, part of the team heads over to investigate, only to find themselves trapped inside with limited oxygen when the bunker fails to open.

When a man in a concealed U.S. Navy jacket drops dead from a cocaine overdose on a crowded bus in Bondi, the investigation pulls Evie back into her past as an undercover narcotics cop.
 

The team races to save one of their own when Doc Roy and his dog are involved in a hostage situation at their local dog cafe

When a U.S. petty officer's body is found in Sydney's historic and haunted Rocks area, a decades-old Navy Cross medal holds the clue to solving the murder, leading the team on a wild ghost chase to catch a killer.

When a shark spits out an arm wearing U.S. Navy equipment, the team's investigation tests the loyalty of a band of former Navy divers.

When a Navy compliance officer is found dead in a waterhole from a snakebite, the team works to uncover the origin of the rare deadly taipan that is uncommon to the area where the officer was discovered.

The death of an American seaman on a U.S. nuclear submarine during an AUKUS ceremony on Sydney Harbour is investigated in a joint effort between America's NCIS agents afloat and the Australian Federal Police (AFP).