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As Rick and Marty Lagina return to Oak Island, they discover that not only does borehole 10-X contain even more secrets than previously thought, but a new technology could prove that there are numerous treasure sites lying all over the island.

After scanning sonar has corroborated Dan Blankenship's long held belief that a chamber 235 feet down 10-X may contain wooden posts, side tunnels, a chest and even human remains, Rick and Marty Lagina along with their partners begin clearing the shaft of obstructions to allow divers to safely explore it.

Rick and Marty Lagina bring heavy digging equipment to the island and their first target is where a researcher claims the treasures of the Knights Templar lie buried.

After finding the original Money Pit, Rick and Marty Lagina look at an ancient stone carving that may help prove that Portuguese explorers with connections to the Knights Templar are behind the Oak Island Mystery.

While prepping for a diver to explore the bottom of 10-X, Rick and Marty Lagina arrange to send an ROV camera down the shaft, which reveals evidence that could threaten their entire operation.

Rick Lagina, Jack Begley and Dave Blankenship are looking for the missing H.O. stone a mysterious carved stone that was part of a larger boulder on the north shore that searchers blew up in the 1800's wrongly believing there might be treasure beneath it.

The brothers successfully negotiate bringing Fred Nolan back into the venture and everyone celebrates the history of the island by burying a Time Capsule.

While back in Michigan on business, Marty Lagina, his son Alex and Craig Tester meet with divers and side scan sonar experts Mike Roberts and Dave Delaney to discuss an upcoming operation they intend to conduct in the waters surrounding Oak Island.

Columbus Day-Rick and Marty meet a researcher who links Christopher Columbus to the Oak Island mystery.

Rick, Marty and their partners obtain a mysterious sword that could connect the Roman Empire to the Oak Island treasure hunt.

Rick and Marty find a mysterious 20-foot high void deep inside the Money Pit just before diver John Chatterton successfully reaches the bottom of borehole 10-X.

Massive secrets are revealed leaving Rick and Marty digging more holes.