Rick and Marty Lagina pursue their lifelong dream of solving the 223-year-old mystery of Oak Island on the Atlantic shore of southern Nova Scotia, Canada. Teams of searchers have attempted to unearth the treasure believed to be buried on the small island for over two centuries.

Armed with the knowledge of those that came before them, lots of heavy machinery, and decades of engineering know-how, the Lagina's and their partners may be closer than anybody else in history to finding the treasure that has so-far claimed the lives of six men.