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.
When the suspicious death of an old Drug Squad colleague pulls Evie back into a secret undercover operation, DeShawn is torn between loyalty to his friend and loyalty to his team.
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.