At the start of the War of 1812, an American sea captain is charged with running his ship, The Concord, through the British naval blockade and sailing to France for gold bullion as a war loan. Taking along a former British captain as first-mate, our captain is unaware that he and some of his recruits for the crew are planning on mutinying and taking the gold for themselves. Once the gold is stored aboard the Concord and it sets sail for America, the mutineers strike and assume control. Our captain must now retake the ship and defend it from the British Navy.