The Robertson brothers are always hunting something, and this time they are after buried treasure; with the help of expert treasure hunter Murry Crowe and their Uncle Si, Jase and Jep set out to uncover hidden cannons filled with gold in Louisiana.
Jase and Jep go to Greensburg, Kan., to surprise Murry with a meteorite treasure hunt for his 75th birthday; after he learns how valuable meteorites can be, Si is on his own unique mission to find out all he can about these rare rocks from space.
Miss Kay throws down the gauntlet to find a rumored buried treasure in Bernice, La.; when Murry challenges the location of the alleged burial, the competition to find the gold is on; they split up on a chase to uncover exactly where X marks the spot.
After getting an insider tip, Jase, Jep and Murry hunt for historical relics at Grant's Canal, a failed military operation from the 1800s; Si strikes a deal with an auction house so they can sell their treasures for cash money.
After learning that Missy and Jessica are going to Abilene, Texas, to feather the nest for their college kids, Jase, Jep and Murry use the trip as a rare opportunity to hunt for World War II artifacts on American soil at an old training ground.
The treasure hunters go on a men's night out at the Magnolia Ridge, a beautiful historical property that connects back to the Lewis and Clark expedition; Si orchestrates a photoshoot for the guys to help them gain exposure.
Jase, Jep, and Murry hunt the Idlewild Historic Estate near Morgan City AKA 'Tiger Island';
Si sets out to prove black panthers are living in Louisiana.
After Si introduces his new assistant, Jase, Jep, and Murry decide they need their own assistant and include him on their hunt at a historical site in San Felipe, Texas.
The guys have a mysterious hunt at a property known as Hell's Half Acre in Kentucky; Missy enlists the family's help for their grandbabies' dedication celebration.
The guys hunt a historical property in Virginia, the site of the first Thanksgiving; back in Monroe, Si and Phillip hatch a billboard scheme to drum up new business.
It's Christmastime in Tennessee and the Robertson's gather for treasure hunting and family traditions. Food is a big deal for the Robertson family - especially the Robertson men. Missy and Jessica take on the challenge and attempt to make Miss Kay's famous crawfish pie for Christmas dinner.