Time To Dig: Armed with heavy digging equipment, Ricky and Marty Laguna target an area where a researcher claims the treasures of the Knights Templar could be buried. (S3, ep 3)
Pipe Down: The team prepare borehole 10-X for divers, after scanning sonar confirms a long held belief that one of its chambers may contain a chest, as well as human remains. (S3, ep 2)
The Laguna brothers return to the mysterious island off Nova Scotia that's believed to be protected by a powerful curse. This time, can they unearth its hidden treasures? (S3, ep 1)
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)
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)
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)
Silence In The Dark: Further exploration of 10-X uncovers an artifact that could potentially link the island to Ancient Rome. (S3, ep 10).
Columbus Day: While preparing to send another dive team to explore 10-X, Rick and Marty examine claims that Christopher Columbus can be linked to the Oak Island mystery. (S3, ep 9)
Phantom of the Deep: Rick and Marty make an extraordinary discovery in the island's surrounding waters. (S3, ep 8)
Underground Alien Bases: The team investigates rumours of human-alien genetic experiments reportedly going on deep below the New Mexico desert in an underground base. (S3, ep 3)