A mystery lurking underground forces the team to reevaluate their safety.
Duane won't stop until he gets his hands on the gold under his property.
Chad dives into a flooded cave system after a tantalizing discovery.
The team catches a break while trying to find a new entrance to the cavern.
Trespassers prompt Charlie to increase security on the ranch.
Duane uncovers a whole new mystery about the land he owns.
