Mystery at Blind Frog Ranch

Duane asks professional treasure hunter Josh Feldman to join their search for the Aztec gold. But a local tribal elder visits with a warning.(S04,E02)

Eric and Chad encounter disaster in the South Cave. A mysterious rumbling shakes the ranch, and James finds evidence of the Aztecs at the Bead Site.(S04,E03)

Chad and Eric discover an abandoned mine in the mountains and suspect they're being stalked. At the Bead Site, the team finds evidence of sacrifice.(S04,E04)

Chad and Eric find signs of gold at the mine, but nightfall brings an unwanted stalker. At the Bead Site, the team unearths an ancient structure.(S04,E05)

Duane's drilling at the Bead Site goes awry. Plus, Chad and Josh explore a collapsed mine, and Eric visits an ancient meteor site in Ohio.(S04,E06)

Duane and James visit Mexico to meet with an expert after drilling an Aztec aqueduct, while Chad and Josh trace the waterway to a remote lake.(S04,E07)

After finding a hidden cave below a lake, Chad trains in Florida to dive into the cavern. A maze of flooded tunnels leads him to a shocking discovery.(S04,E08)