Dinosaur fossil season has begun, and Montana rancher Clayton Phipps finds what might be an extremely rare and valuable fossil on his family's property.

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 Phipps and his team prepare to flip a 20,000-pound carnivore fossil out of the earth and onto a flatbed to get it to the lab for analysis; Mike Harris hunts for a duckbill skull; Jared Hudson uncovers an ancient reptile.

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; 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 tyrannosaurus rex or the controversial nanotyrannus; in Wyoming, Mike Harris and Aaron Bolan race against the impending winter digging at a promising new site.