After dating the Spanish coin they found last summer to 1652, brothers Rick and Marty Lagina return to Oak Island and the strange triangle-shaped swamp to look for more clues to this 200-year-old mystery.

As Rick and Marty Lagina begin excavating the infamous Money Pit, a visitor shows them evidence that the treasures from King Solomon's Temple could be buried on Oak Island.

After hearing that a treasure of biblical proportions was buried on Oak Island 2500 years ago, Rick and Marty Lagina look for evidence to prove it while also trying to locate the original Money Pit.

Rick, Marty and the Oak Island team make a potentially historic discovery in the Money Pit.

A visitor comes to the island and implies that he has found a secret way of getting to the treasure.

While Rick conducts a test that may help the team locate man-made flood tunnels on the island, Marty heads to Europe to track down an incredible lead.

Rick and Marty examine the swamp for an alternate entrance into the Money Pit.

Rick and Marty bring a team of divers to Oak Island to explore the legendary treasure shaft, 10-X.

The Lagina brothers and their partners make a huge discovery at the bottom of 10-X.