Off the coast of Nova Scotia sits a small island that is a riddle wrapped in enigma. In the 1700s, people noticed strange lights there at night, and the person sent to investigate them disappeared. Eventually, a couple of kids who rowed out to the island found a strange indentation in the ground. This discovery began a quest that goes on until this day and has involved everyone from FDR to John Wayne. What lies beneath Oak Island? Is it a pirate treasure or a Viking horde? An ancient Fort Knox or even a lost Biblical relic like the Ark of the Covenant? No one knows, and anyone who has tried to find out has encountered an unexpected problem -- booby-traps. Someone went to great measures to hide whatever is there, because as soon as you dig down a few feet, seawater from various hidden, man-made channels floods the hole. Enter the Lagina brothers from Michigan.