Mystery at Blind Frog Ranch

Duane Ollinger believes there's a fortune of gold buried beneath his property in Utah, Blind Frog Ranch. But even though the land seems to be fighting him at every turn, he's not going to stop until he gets his hands on the gold -- whatever the cost.

Duane Ollinger believes there's a fortune of gold buried beneath his property in Utah. He's not going to stop until he finds the treasure, no matter the cost.

With an access tunnel to the underground cavern finally opened, and a tantalizing clue discovered, Duane's son Chad takes a risky dive into the flooded cave system -- and what he finds defies all explanation.

With an access tunnel to an underground cavern finally opened and a tantalising clue discovered, Duane's son Chad takes a risky dive into the flooded cave system.

A mystery lurking in the darkness forces the team to reevaluate their safety underground.

Duane and the team search for new access points to the underground cavern system. But something lurking in the darkness forces everyone to re-evaluate their safety.

While searching unexplored areas of the ranch for an alternate entrance to the cavern system, the team discovers mysterious ancient markings on a cliffside and a mining shaft dug deep into the mountain that could lead them right to the gold.

The team discovers mysterious ancient markings on a cliffside, and a mining shaft dug deep into the mountain that could lead them right to the gold.

Trespassers prompt Charlie to increase security on the ranch with a camera system.

Duane employs ground-penetrating radar to scan the land, leading to a mysterious finding. Trespassers prompt Charlie to increase security on the ranch.

As winter closes in and the digging season nears its end, Duane takes a final shot at getting into the underground cavern ... but uncovers a whole new mystery about the land he owns.

As winter closes in and the digging season nears its end, Duane takes a final shot at getting into the underground cavern and uncovers a whole new mystery about the land.