A mysterious sinking, a group of dedicated scientists and
technicians and a 200 year old shipwreck have all collided in the Gulf of Mexico. Four thousand feet below the choppy seas the remains of a 19th century shipwreck lie in wait and a month long expedition has been mounted to uncover her secrets. This is the deepest underwater archaeological project ever attempted in the Gulf of Mexico. And it's a race against time to uncover the Mardi Gras shipwreck and solve the mystery.