With a Stinger missile and murderer in the wind, and Darwin's World War II Commemoration ceremony fast approaching, NCIS: Sydney races to prevent a deadly attack.

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.

A glitzy tech launch turns into a disaster, leaving half of NCIS: Sydney trapped underground, and the others scrambling to save the day before the clock and the oxygen runs out.

The team battles searing temperatures to investigate the death of a U.S. Marine corporal killed during a joint training exercise between U.S. and Australian troops.

NCIS: Sydney will do whatever it takes to crack the case of a rogue assassin on the run during NCIS Special Agent DeShawn Jackson's chaotic first day as boss.

The team is thrown into the murky world of online conspiracies after a car owned by a U.S. Navy cyber engineer explodes just as her teenage daughter was about to take a driving lesson.

The discovery of two missing U.S. Navy aviators adrift in the Coral Sea leads the team to expose a sinister terrorist plot.

Growing increasingly worried about Blue’s strange behavior, Doc takes matters into his own hands and breaks into her apartment. Inside, DeShawn and Evie stumble onto a startling revelation that forces the team to question just how well they really know one of their own.

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.

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.

When a U.S. naval officer is arrested for murder while trying to destroy a treasure map, the team must navigate jurisdictional politics to uncover the truth while racing to find the fabled “Yamashita’s Gold".

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 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 petty officer is found murdered and frozen, it leads the team into a twisted underworld of seafood and sex trafficking.

The team’s hunt for a high-value U.S. target accused of murdering an Australian soldier takes an unexpected turn when the suspect claims to have evidence of a war crime.

A U.S. Navy pilot goes missing at a UFO hotspot in the Outback after being chased by bright lights.