Duane and Chad Ollinger return to Blind Frog Ranch to lay out their plan of attack to find the Aztec...

Duane Ollinger sinks everything he has into hunting for what he believes is a vast fortune of gold o...

Chad dives into a flooded cave system after a tantalizing discovery.

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

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.

After a long winter, the crew returns to Blind Frog Ranch to strategize a new plan to get the box ou...

The results from radiocarbon testing are in, which will tell Duane if the box is Aztec or not. Then,...

When a windstorm ruins visibility in the water, Chad considers a risky blind dive to extract the box...

Chad makes a huge mistake, derailing the operation to drag the box out of the cavern. But when they...

Determined to get into the cavern, Duane and his team explore new methods to find a dry entrance; wh...

After Duane makes a costly mistake, Eric and Chad finally discover what they've been looking for. Ho...

After the crew drills into a dry cavern, they must devise a plan to protect themselves from radioact...

As Duane and crew explore the cavern they find themselves overcome by a deadly and invisible gas clo...

Duane and Chad Ollinger return to Blind Frog Ranch, armed with cutting-edge tech, to unearth $3 bill...

Searching for the hidden entrance to the cave system, the team uncovers an ancient vent shaft above...

When an underground tsunami floods the cavern system, Duane and his team attempt to breach it from h...

After uncovering a bar of gold at the Bead Site, Chad and James set out to research where it might h...

Following the trail of the Lost Rhoades Mine, Chad and Ryan attempt to rappel down a 250-foot cliff...

Now that the floodwaters have receded at the Energy Zone, the team prepares to resume drilling into...

While drilling into the cavern system to find the Aztec gold, the team strikes an impenetrable objec...

After hitting a meteorite deep underground while trying to drill into the cavern system, the team se...

Chad and Eric explore a deep cavern while Duane discovers smoke vents.

Duane recruits treasure hunter Josh Feldman, who recommends a new plan of action to find the Aztec g...

Eric and Chad encounter disaster while attempting to breach the void in the South Cave. A mysterious...

Chad and Eric discover an abandoned mine deep in the mountains and suspect they are being stalked. A...

Chad and Eric find signs of gold at the abandoned mine, but nightfall brings an unwanted stalker to...

Disaster strikes when Duane and Charlie attempt to drill down a smoke vent at the Bead Site. Chad an...

Believing they might have drilled into an Aztec aqueduct at the Bead Site, Duane and James head to M...

A hidden cave entrance below a lake could finally lead the team into the Keyhole Chamber. After trai...

Chad dives into the underwater passage, uncovering a direct path to the Keyhole Chamber. Eric return...

Chad traces the underground cavern to a mysterious bear marker and a cave hiding a gold ledger, whic...

After a mysterious trailer appears on the Ranch's property, Duane is determined to find out who is s...

Chad and Josh trace the flooded tunnel to a mysterious stone structure containing Aztec artifacts th...

The team drills under the armory to access the flooded area underground, but they make an unexpected...