Of Sticks and Stones: Rick and Marty Lagina face a major dilemma as they continue their search for the original Oak Island Money Pit. (S4, ep 14)
Unhinged: The plot thickens around the discovery of the lead cross as a new theory points to possible ancient origins. (S5, ep 13)
One of Seven: The Laginas and their partners make incredible discoveries at Smith's Cove and in the Money Pit. (S4, ep 13)
Secrets and Revelations: In the season three finale, the Lagina brothers finally get results from borehole 10-X, while The Money Pit also yields an exciting discovery. (S3, ep 13)
A Key to the Mystery: A skeleton key and maps from Fred Nolan's archives open a new door in the Laginas' quest. (S5, ep 12)
Hyde Park and Go Seek: 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. (S4, ep 12)
Voices From Below: The explorers finally reach the bottom of borehole 10-X, while a whole new void is discovered deep in the Money Pit. (S3, ep 12)
Moving Targets: Further investigation suggests a link between the mysterious medieval cross and the Knights Templar. (S5, ep 11)
Presidential Secrets: Rick Lagina travels to the Franklin D. Roosevelt library to find out why the former US President was obsessed with Oak Island. (S4, ep 11)
Sword Play: The brothers retrieve some interesting lab results from the mysterious sword they found, before following another lead North of the island. (S3, ep 11)