Rick, Marty and the team return to Oak Island follow up on last year's amazing discoveries, and double down on their efforts to locate the elusive Oak Island Money Pit.
The seismic results are in, revealing the existence of a mysterious underground chamber, while Gary and Jack make a discovery suggesting another Templar connection.
Seismic results guide the team to a possible network of tunnels in the Money Pit, while Gary unearths the first evidence of a French presence that could rewrite the history of the Oak Island mystery.
New insights on Nolan Cross suggest a Templar connection to the Money Pit while emerging, hard evidence convinces the team the discovery of the lead cross may be the most historic find in North America.
After years of searching, the team may have located a previously discovered artifact that has been missing for more than a century. In Smith's Cove, the Laginas struggle to hold back the waters.
New evidence uncovered at Smith's Cove brings the fellowship closer to deciphering the purpose of the mysterious "u" shaped structure and a previously undiscovered formation may lead them to the island's elusive, legendary flood tunnels.
A carved stone discovered at the money pit suggests an early Viking presence on Oak Island; the team may have finally discovered the elusive Oak Island box drains at Smith's Cove.
While the excavation of Smith's Cove continues to uncover an abundance of ancient structures, Rick, Marty and the team resume the treasure hunt in H8, convinced more than ever it is the site of the money pit.
A shocking new discovery at Smith's Cove suggests that the origin of the Oak Island mystery may date much earlier and be more profound than the treasure hunters before ever suspected.
A stunning structure uncovered in Smith's Cove perplexes the brotherhood like never before and at the Money Pit, the team finds evidence they may have discovered the legendary box believed to contain the Oak Island treasure
The treacherous collapse at H8 forces the team to design an exciting new approach to the Money Pit, while Alex and Jack investigate underwater targets that may lead to a second flood tunnel system.
With the days getting shorter and only a few weeks remaining before the fellowship must suspend operations for the winter, the team is determined to excavate under the giant crane pad in Smith's Cove.
It's the season finale and the team is handed a shocking new theory that may connect the Oak Island treasure to the birth of a nation. But it's also the moment of truth for the fellowship as the guys are faced with the burning question: quit or continue?
