The Curse of Oak Island Show Summary, Upcoming Episodes and TV Guide

The plot thickens around the discovery of the lead cross as a new theory points to possible ancient origins, while Rick pulls an artifact from the swamp that may support one of Fred Nolan's theories.

Further investigation suggests a link between the mysterious medieval cross and the Knights Templar.

A research expedition to a French castle and prison reveals new clues, including ancient carvings that strengthen a possible link between the Knights Templar and Oak Island.

The Laginas and their team make what could be the most important discovery in the history of Oak Island.

The Lagina brothers and their partners make incredible discoveries at Smith's Cove and in the Money Pit.

Rick Lagina travels to the Franklin D. Roosevelt library to find out why the U.S. president was obsessed with Oak Island.

Rick and Marty Lagina send divers deep into the Money Pit in search of a mysterious golden object.

As Rick and Marty begin a second massive dig in the Money Pit, possible proof of a shipwreck is located in the swamp.

Rick and Marty Lagina believe they have finally located an ancient treasure vault in the Oak Island Money Pit.

The Lagina Brothers find evidence of what could be an ancient shipwreck in the Oak Island swamp.

Rick and Marty Lagina return to Oak Island to prepare for a major excavation of the Money Pit

Rick and Marty discover a mysterious 20 foot high void deep inside the Money Pit just before diver John Chatterton successfully reaches the bottom of borehole 10-X.

Rick, Marty and their partners receive a mysterious sword that could connect the Roman Empire to the Oak Island treasure hunt.

Rick, Marty and their team make an amazing discovery in the waters surrounding Oak Island.

Rick and Marty Lagina and their partners attempt to piece together the clues carved in various stones on the island; they meet with a theorist who believes that the Aztec Empire was behind the 220 year old Oak Island mystery.

After finding the original Money Pit, Rick and Marty Lagina look at an ancient stone carving that may help prove that Portuguese explorers with connections to the Knights Templar are behind the Oak Island mystery.

While Rick and Marty Lagina start clearing dangerous obstructions from 10-X, Craig Tester and Jack Begley conduct a drilling operation to locate a possible golden treasure cache.

Rick and Marty use sonar to map out the bottom chamber of the 10X borehole.

Rick and Marty search the swamp for an alternate entrance into the Money Pit.

Rick searches for man-made flood tunnels; Marty and John visit Europe to track down a lead.

Rick, Marty and the Oak Island team make a potentially historic discovery in the Money Pit.

As Rick and Marty Lagina begin excavating the infamous Money Pit, a visitor shows them evidence that the treasures from King Solomon's Temple could be buried on Oak Island.

Rick and Marty Lagina find what appears to be an antique Spanish copper coin that is the first evidence of treasure on Oak Island.

As Rick and Marty Lagina begin working to drain a swamp, they are visited by a woman who lost her father and brother to a tragic accident on Oak Island that gave rise to rumours of a deadly curse.

Brothers Rick and Marty Lagina now own most of Oak Island. Determined to resurrect the 200-year-old search for treasure, they explore an abandoned shaft called 10X and use water pressure to pump material to the surface. What they find gives them reason to believe that the stories of something buried on the island may very well be true.