After dating the Spanish coin they found last summer to 1652, brothers Rick and Marty Lagina return to Oak Island and the strange triangle-shaped swamp to look for more clues to this 200-year-old mystery in Season 2, Episode 1, "Once In, Forever In." New episodes Tuesdays at 9/8c on History. Stay up to date on all of your favorite shows on The HISTORY Channel website at http://history.com/schedule. #TheCurseOfOakIsland Subscribe for more from The Curse of Oak Island and other great The HISTORY Channel 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 The HISTORY Channel content: History Newsletter - https://histv.co/newsletter Website - https://histv.co/History Facebook - https://histv.co/Facebook Instagram - https://www.instagram.com/history TikTok - https://www.tiktok.com/@history "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. 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.