Blood is Thicker (Part Two): In the season finale, the Lagina brothers wrap up their treasure hunt after making a momentous discovery. (S4, ep 16)

Seeing Red: The fellowship battles the shifting tides of Smith's Cove and finds evidence that may support one of Dan Blankenship's early theories. (S5, ep 15)

Blood is Thicker (Part One): The Laginas and their team make what could be the most important discovery in the history of Oak Island. (S4, ep 15)

Steel Trapped: The team hits something in the DMT shaft that may prove to be the last thing standing between it and the answers below. (S5, ep 14)

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)