Montana rancher Clayton finds what might be a rare and valuable fossil on his family's property. In Wyoming, Mike and his son uncover a triceratops horn.

Clayton Phipps continues his excavation of a rare carnivorous dinosaur on his Montana ranch; Mike Harris and son Jake prepare to sell their prized tyrannosaurus-rex fossil; Aaron Bolan hunts for an ankylosaurus.

Clayton must haul his 20,000-pound dinosaur fossil over 200 miles to a lab where it will finally be identified. The Harris/Bolan clan chases poachers off of their land and Jared makes a last-ditch effort to bring in some money this season.

With their prized carnivore fossil finally at the lab, Clayton returns to his ranch in Montana to hunt for quick finds at Old Faithful. In Wyoming, Mike Harris and his team continue excavating their triceratops site hoping to uncover the valuable horns.

In Montana, Clayton Phipps prepares to learn if his carnivore skeleton belongs to a T-Rex or the controversial nanotyrannus. Meanwhile in Wyoming, Mike Harris and Aaron Bolan race against the impending winter digging at a promising new site.