Convoy Homeward

WWII: Commodore John Mason Kemp, aboard the troop transport Aurelian Star, is leading a convoy sailing west from Colombo to East and South Africa, and then out into the Atlantic before finally making homeport in Scotland. Along with vital supplies, the convoy picks up colonial troops, civilians and German POWs in East Africa, encounters U-boat danger all along the way, and is unsettled by tensions among the crew, passengers and POWs before a climactic battle with a Nazi surface raider in the South Atlantic.