March, 1862. Cannons blare, troops cheer, and shells bounce off ironclad hulls into the waters just off the coast of Norfolk, Virginia. After four hours at near point-blank range, the Union's warship, the USS Monitor, battles the Confederacy's CSS Virginia (also known as the Merrimack) to a draw, altering the course of the Civil War and naval combat. After serving less than 12 months on active duty, the Monitor sank in 230 feet of water off North Carolina's Cape Hatteras. Today, the Monitor rests in the nation's first marine sanctuary, along with several thousand wrecks in waters dubbed The Graveyard of the Atlantic. Join an elite team of Navy divers as they attempt to recover priceless artifacts of American and naval history; meet the controversial ship designer who built the Monitor in just over 90 days; see a realistic reenactment of the battle that changed the course of the Civil War; and discover a powerful military past as the secrets of the Monitor's short-but-significant service emerge from the deep.