Peril strikes during a daring dive; Rick and Marty double down on their efforts to locate the original Money Pit with the most ambitious engineering operation in Oak Island history; the fellowship of the dig is faced with a tragic loss.

Evidence of pirates on Oak Island mounts after a treasure chest from the 1700s is found; Rick and Marty get stunning news about a find from the Money Pit.

The team is exhilarated by hard evidence of a European presence on Oak Island more than a century before the discovery of the Money Pit, then alarming news threatens to shut down the entire operation.

Danger strikes just as the geo-tech drilling team hits a possible void in the Money Pit; the discovery of a long-lost artifact leads to an emotional reunion for one of the surviving members of the legendary Restall family.

The discovery of an old document provides new clues on the exact location of the Money Pit; the fellowship of the dig makes a cryptic discovery at uncharted depths.

After years of searching and speculation, Rick and Marty Lagina and their team unearth evidence of what Marty believes is the exact location of the ultimate target, the Money Pit.

Two new pieces of ancient evidence found deep in the Money Pit may be proof of theories that could rewrite the history of the Oak Island mystery.

New evidence confirms a European presence on Oak Island 100 years before the discovery of the Money Pit; research suggests a clear pathway from the Knights Templar to Oak Island.

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 team unearths a ship's log detailing the burial of treasure on an island eerily similar to Oak Island; Rick and Gary make what may prove to be the biggest find on Oak Island, ever.