The Curse of Oak Island - Season 4 (2016)

Rick and Marty Lagina begin their search for a centuries-old treasure vault in the Oak Island Money Pit.

Rick and Marty Lagina believe they have finally located an ancient treasure vault in the Oak Island Money Pit.

The Laginas decide to move their Money Pit operation in hopes of finding a strange golden object.

As Rick and Marty Lagina begin a second massive dig in the Money Pit, possible proof of a shipwreck is located in the swamp.

The Laginas find important evidence linking an 18th century American slave to the Oak Island mystery.

Rick and Marty Lagina send divers deep into the Money Pit in search of a mysterious golden object.

The Oak Island team returns to borehole 10-X in search of new clues.

Rick and Alex Lagina travel to the Franklin D. Roosevelt museum in New York to meet researcher Paul Troutman.

Rick and Marty decide to dig a third hole at the Money Pit after Rick finds even more evidence connecting Oak Island to the Knights Templar.

The Laginas and their partners make incredible discoveries at Smith's Cove and in the Money Pit.

Rick and Marty Lagina face a major dilemma as they continue their search for the original Oak Island Money Pit.

The team finds out what the mysterious metal spike really is. They also make new important discoveries while their drill season comes to an end as winter approaches.