A revealing look at two lucrative smuggling routes of the criminal underworld: the tugboat William P. Maloney, a rumrunner carrying whiskey, sank in the Atlantic Ocean off New Jersey during Prohibition; drug smuggling results in a mysterious plane wreck of a C-46 in the Caribbean at Norman's Cay, The Bahamas.

Dreadnoughtus, discovered in Patagonia, Argentina, is one of the largest titanosaurs ever discovered. A tale of human sacrifice deep within an underwater cave (or cenote) in Yucatán, Mexico, offers new insight into the rise and fall of the ancient Maya civilization. Draining Alaska's extreme north reveals the graveyard of a tragic fleet of 32 whaling ships strapped in the Arctic ice off the state's north coast in the Whaling Disaster of 1871.