Blackbeard was once the most feared and successful pirates on the sea having sailed with the likes of Sam Bellamy and Benjamin Hornigold. But at the height of his fame, the flagship of his pirate fleet, 'The Queen Anne's Revenge', sunk in mysterious circumstances off Beaufort Inlet on the East coast of America.Now a team of underwater archaeologists are going below the waves to explore the wreck and find out why the notorious ship was lost. Was it the victim of bad navigation or are there more sinister motives behind the ship's sinking?