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.

While Rick and Marty Lagina begin clearing dangerous obstructions from 10-X, Craig Tester and Jack Begley conduct a drilling operation to locate a possible golden treasure cache.

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 below.

After locating the original money pit, Rick and Marty Lagina examine an ancient stone carving that may help prove that Portuguese explorers with connections to the Knights Templar are behind the Oak Island mystery.

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

Clues carved in various stones on the island are examined, and a theorist posits that the Aztec Empire may be behind the Oak Island mystery.

After making a truce with Dan Blankenship's longtime rival, Fred Nolan, Rick and Marty Lagina make an exciting discovery.

Rick and Marty Lagina along with their team make an incredible discovery in the waters surrounding Oak Island.

A researcher connects Christopher Columbus to the Oak Island mystery.

The guys obtain a sword that may be able to connect the Roman Empire to the treasure hunt.

After getting lab results concerning the mysterious Roman Sword, Rick, Marty and the team meet with a pair of treasure hunters who believe the Oak Island treasure lies north of the money pit.

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

Rick and Marty Lagina finally get answers from the bottom of borehole 10-X just before making an incredible discovery deep inside the money pit.