High-tech radars reveal possible tunnels and strange voids beneath Skinwalker Ranch. But as drilling begins, mysterious symptoms surface. Are there secrets beneath the earth? After a groundbreaking fourth season, investigators return to the 512-acre ranch in Utah's Uintah Basin to push their investigation into the unknown even further. This latest season will follow our lead investigator Travis Taylor and his team as they dig deeper with advanced technology and new theories in an attempt to finally figure out why Skinwalker Ranch has been the site of both paranormal and UFO events that no one can explain.