He is one of the cast in a TV reality/adventure show titled The Curse of the Oak Island, as broadcast on the History Channel. Marty, his brother Rick, his son Alex and others participate in this show that seeks to solve the mystery of the treasure that is said to be in the Oak Island, a belief that has consumed many explorers in the past with unsuccessful results. After reading January 1965 issue of the Reader's Digest magazine that featured an article about a certain Restall family trying to solve the mystery of the Oak Island, the desire to explore this island and hunt for the treasure.The brothers then gained the controlling interest of Oak Island Tours and were approached by the Prometheus Entertainment in order to create the reality show, for which the Lagina brothers collaborated with Dan and Dave Blankenship, a father-son duo who reside in the Oak Island.