Rick, Marty and the team have just discovered a strange cave complex buried beneath the island. Riddled with anomalies, the guys decide the best way to uncover its secrets is to stick in an ultra-emitting radar. Rick, Marty, and the team return to Oak Island and immediately uncover evidence of a mysterious tunnel in the Money Pit. The Fellowship gets a clear look at an underground structure. Are they closer than ever to solving the 227-year-old mystery?