When a young treasure hunter tells Rick and Marty he is hunting for the long lost treasure of pirate Jean Lafitte, the brothers are so intrigued they send Matty Blake to assist in a dangerous dive to further the search.
Marty Lagina and Matty Blake return to the eerie waters surrounding Poverty Island in Lake Michigan to search for a lost Civil War treasure worth an estimated 400 million dollars.
On the beaches of Tampa, Florida, Marty and Matty dig for treasure believed to have been hidden in the early 1800's by the French pirate Captain Louis-Michel Aury.
Return to the Atocha treaures.
Returning to Poverty Island
Matty Blake travels to the swamps of North Carolina to help a father and son treasure-hunting team excavate an old mining dredge believed to contain vast riches connected to America's first gold rush.
Rick Lagina, Tony Sampson and Matty Blake join Barry and Brandon Clifford to search for artifacts and treasure connected to the infamous Whydah shipwreck off the coast of Cape Cod, Massachusetts.