The Curse of Oak Island: Gary Discovers Evidence of Secret Tunnel (Season 8) | History
As the team continues to excavate the stone pathway, they make another groundbreaking discovery of a castor wheel - possibly utilized during a tunneling operation, in this clip from Season 8, "A Loose Cannonball." #OakIsland
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"The Curse of Oak Island" follows brothers Marty and Rick Lagina as they investigate the mystery of a buried treasure on Oak Island off the coast of Nova Scotia, Canada.
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