A Ship Must Die begins in Australia in January 1944. A German raider is stalking the shipping in the Indian Ocean. Since the Indian Ocean is a backwater, the resources to aggressively track it down are not provided. One battered cruiser, Andromeda, must postpone repairs and pursue the raider. Complications arise when it appears that there might be not one but two raiders on the prowl. One cruiser has already disappeared at the hands of the Germans. Can our heroes survive and defeat the enemy?