Mystery at Blind Frog Ranch

The team embarks on an expedition to a remote meteorite impact site, located on a treacherous mountain above the ranch; they uncover clues that lead them to an underground cavern; as Duane's health continues to decline, Chad must step up.

As they continue trying to enter the Aztec gold chamber, the Ollingers take on their biggest project yet, draining the pond; but when a health crisis strikes Duane, Chad must take the lead.

The team drills under the armory to access the flooded area underground, but they make an unexpected discovery that could detonate Blind Frog Ranch; unfazed by the dangerous surroundings, Duane pushes forward to find the Aztec gold.

A hidden cave entrance below a lake could finally lead the team into the Keyhole Chamber. After training in Florida with some of the best cave divers in the world, Chad navigates a deadly maze of flooded tunnels and makes a shocking discovery.

Believing they might have drilled into an Aztec aqueduct at the Bead Site, Duane and James head to Mexico to meet an expert. Chad and Josh trace the underground waterway to a remote lake that might be protecting a secret.

Disaster strikes when Duane and Charlie attempt to drill down a smoke vent at the Bead Site. Chad and Josh follow the fault line back to the collapsed mine. Eric explores an indigenous site in Ohio that holds clues to Blind Frog Ranch.

Chad and Eric find signs of gold at the abandoned mine, but nightfall brings an unwanted stalker to their camp. At the Bead Site, the team unearths an ancient structure.

After hitting a meteorite deep underground while trying to drill into the cavern system, the team searches for an alternate route.

While drilling into the cavern system to find the Aztec gold, the team strikes an impenetrable object deep below ground.

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

Following the trail of the Lost Rhoades Mine, Chad and Ryan attempt to rappel down a 250-foot cliff in a dangerous maneuver to access the Mormon Eye cave.

As Duane and crew explore the cavern they find themselves overcome by a deadly and invisible gas cloud. Complications with their rescue leaves them wondering if they will make it out alive.

After the crew drills into a dry cavern, they must devise a plan to protect themselves from radioactivity and poisonous gasses; but as they get close to finally entering the cave, trespassers descend upon the ranch.

After Duane makes a costly mistake, Eric and Chad finally discover what they've been looking for. However, the crew gets caught in the cross hairs of mysterious intruders.

Determined to get into the cavern, Duane and his team explore new methods to find a dry entrance; while Chad takes to the skies in search of a natural opening, Eric thinks the radioactive rocks found in the box might show them where to dig.

Duane uncovers a whole new mystery about the land he owns.

Trespassers prompt Charlie to increase security on the ranch.

The team catches a break while trying to find a new entrance to the cavern.

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

Chad brings the BFR team together with top experts to examine all of the artifacts and evidence they’ve collected during the last dig season. Geologist Hector Estrella theorizes that water moving underground could be creating the mysterious rumble the team has experienced on the ranch. Roger Blomquist believes the altar at the Bead Site could be evidence of Montezuma’s tomb buried under the rock formation. Bob Morton authenticates the composition of the Jade Bead, likely a sacred Aztec artifact carried all the way from Mexico to BFR. Mark Julian suggests that digging on the ranch has awoken a dark shapeshifting creature that could be a skinwalker.

Duane and Chad Ollinger return to Blind Frog Ranch to lay out their plan of attack to find the Aztec treasure they believe is hidden underground. Experts analyze the evidence that has been uncovered so far.