Solving the Oak Island mystery feels closer than ever when the team learns they may have been reading Zena Halpern’s templar map incorrectly all along.

The team is stunned when new scientific evidence supports the theory that the Knights Templar were involved in the Oak Island mystery, and the big dig uncovers some surprising relics.

A research expedition to a French castle and prison reveals new clues, including ancient carvings that strengthen a possible link between the Knights Templar and Oak Island.