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? No one knows, and anyone who has tried to find out has encountered an unexpected problem. Enter the Lagina brothers from Michigan. Older brother Rick is obsessed with decoding the secrets, so his little brother and Texas oilman, Marty, spent a fortune to buy access to the island. This summer, they'll use their deep pockets to dig and deploy technology like never before.