The Curse of Oak Island: ANCIENT TUNNEL UNEARTHED at Lot 21 (Part 1) (Season 7) | History

Watch all new episodes of The Curse of Oak Island Tuesdays at 9/8c, and stay up to date on all of your favorite History Channel shows at https://history.com/schedule Rick Lagina and the team make a significant breakthrough while investigating an underground tunnel that connects back to hidden treasure, in this clip from Season 7, "Marks X the Spot". #OakIsland Subscribe for more from The Curse of Oak Island and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the series and watch full episodes on our site: https://histv.co/OakIsland Check out exclusive HISTORY content: History Newsletter: https://histv.co/newsletter Website - https://histv.co/History Facebook - https://histv.co/Facebook Twitter - https://histv.co/Twitter HISTORY® is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network’s all-original programming slate features a roster of hit series, premium documentaries, and scripted event programming.