Clayton risks it all for a raptor fossil and Mike preps a T-Rex skull.

Clayton and Luke begin to excavate the deep overburden that covers the T-Rex site. And while Mike Harris travels to Utah to prep the Cowboy Rex skull, Aaron, Jake and Tori think they're on a bucket-list discovery at the Duckbill site.

When a wildfire surrounds his hometown, Clayton Phipps drops everything to help fight the flames. The Harris-Bolan crew excavates a new Triceratops' site. And the Abercrombie family discovers a Mammoth fossil map on their ranch in New Mexico.