Matty Blake "Drills Down" with the Laginas and the Fellowship of the Dig on how they strive to preserve Oak Island while working to unravel its centuries-old treasure mystery.

Matty and the team look at how their biggest discoveries match up with the historical timeline of North America.

Matty Blake dives in head first to investigate under water points of interest off the shores of Oak Island, in search of clues that might help solve the 227 year old mystery.