On 19 November 1941, one hundred and twelve nautical miles off Shark Bay on the West Australian coast, two ships wrote the most tragic chapter in the Royal Australian Navy’s history. What began as a routine challenge between Australia’s most celebrated warship, HMAS Sydney (II), and a seemingly innocent Dutch merchant vessel quickly turned into a deadly encounter. The “merchant ship” was in fact HSK Kormoran, a heavily armed German raider operating under a false flag. In the fierce battle that followed, both ships were mortally wounded. Kormoran was scuttled and later destroyed by the explosion of her own mines. Sydney disappeared into the night, taking all 645 of her crew with her. It was Australia’s worst naval disaster and its most heartbreaking loss. A memorial on the shores of Shark Bay stands today as a quiet reminder of that fateful night and the men who never returned. Join Gary Kent as we trace the final moments of the pride of the Australian Navy and the dangerous deceptions that can cost us everything.