在这部护航舰血战剧情/战争片中,二战期间，一艘英国皇家海军的巡洋舰刚回到码头，舰长接到基地的命令，全体人员取消休假，一个特殊使命正在等待着他们。军舰接到了保护商船队的任务，一位固执的商船船长不愿加入护卫队，在大西洋上遭遇了德国的U型潜艇，舰长和商船船长最后布置了一个“陷阱”，击中了德国潜艇...
Lt. Cranford lives the life of a playboy sportsman until the outbreak of war when he joins the Royal Navy and is assigned to convoy protection duties. The convoy is a part of the vital supply chain that is all that is allowing Britain to fight off the Nazi threat. A German battleship targets the convoy protection ships and a deadly game of cat and mouse ensues.
