Gary's trusty metal detector unearths a rare find. What at first seems to be a shell casing is soon revealed as a Ram Rod guide, a 16th century device designed to aid in the loading of muskets. 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?