It's a beautiful morning off the coast of West Africa on June 4, 1944. There isn't a cloud in the sky nor harsh ocean waves. The crew of the USS Guandalcanal, led by Captain David Gallery, sails north to refuel after their failure of a Nazi submarine hunt. But ten minutes later, there's a ping on the sonar. It's a sub just 800 meters away and 60 feet below the surface. Captain Gallery knows this is his moment to make history, to do something the United States hasn't accomplished since the 19th century: steal an enemy ship.