Season 4
201616 episodes
4.5
November 22, 2016
Rick and Marty Lagina investigate a mysterious “Hatch” which may be a secret entrance to an underground treasure tunnel on Oak Island.
Episode 3
Swamp Things
November 29, 2016
The Lagina brothers find evidence of what could be an ancient shipwreck in the Oak Island swamp.
Episode 4
No Stone Unturned
December 6, 2016
Rick and Marty Lagina begin to start their search for a centuries old treasure vault in the Oak Island Money Pit.
Episode 5
Bullseye
December 13, 2016
Rick and Marty Lagina believe they have finally located an ancient treasure vault in the Oak Island Money Pit.
Episode 6
Circles in Wood
December 20, 2016
The Lagina brothers decide to move their Money Pit operation in hopes of finding a strange golden object.
Episode 7
All That Glitters
December 27, 2016
Rick and Marty Lagina begin a second massive dig in the Money Pit and find possible proof that a shipwreck is located in the swamp.
Episode 8
The Mystery of Samuel Ball
January 3, 2017
The Lagina brothers find important evidence linking an 18th century American slave to the Oak Island mystery.
Episode 9
Echoes from the Deep
January 10, 2017
Rick and Marty Lagina send divers deep into the Money Pit in search of a mysterious golden object.
Episode 10
About Face
January 17, 2017
The Oak Island team returns to borehole 10-X in search of new clues.
Episode 11
Presidential Secrets
January 24, 2017
Rick Lagina travels to the Franklin D. Roosevelt library to find out why the U.S. president was obsessed with Oak Island.
Episode 12
Hyde Park and Go Seek
January 31, 2017
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.
Episode 13
One of Seven
February 7, 2017
The Lagina brothers and their partners make incredible discoveries at Smith's Cove and in the Money Pit.
Episode 14
Of Sticks and Stones
February 14, 2017
Rick and Marty Lagina face a major dilemma as they continue their search for the original Oak Island Money Pit.
Episode 15
Blood Is Thicker
February 21, 2017
The Laginas and their team make what could be the most important discovery in the history of Oak Island.
Episode 16
A Look Ahead
February 28, 2017
Rick, Marty and the Oak Island team meet up with Matty Blake to reveal new discoveries and discuss future plans.
