When a Marine linked to Mackey's ill-fated rescue mission in Afghanistan is found dead, old enemies emerge and the person she cares for most comes under threat.
The eclectic team of U.S. NCIS Agents and the Australian Federal Police (AFP) are grafted into a multi-national taskforce to keep naval crimes in check in the most contested patch of ocean on the planet.
NCIS: Sydney - The Collective Synopsis and Schedule