In this gripping episode, the NCIS Sydney team uncovers the long-buried mystery of a missing U.S. Naval engineer, whose body is found entombed in concrete. Dive deep into the investigation as the team collaborates with Doc Roy’s old friend, unraveling clues that span continents and decades. Tensions rise and secrets unfold, bringing the team closer to a chilling truth. This episode promises intense drama, unexpected twists, and a journey back to Cold War intrigue.