The vicious mutineers aboard the British ship Jocasta had surrendered their vessel to Spain. Sailing aboard the frigate Calypso, Captain Lord Ramage receives Admiralty orders to recover her by any means. The Jocasta is held in the heavily fortified Spanish port of Santa Cruz, but Ramage will stop at nothing to defy the odds and cut out the imprisoned vessel - even if it means inciting another "mutiny" on board his own ship.