Overlooking the valley atop Jones’ Peak, Jacob and his aunt offer a prayer to honour Sitting Bull and their ancestors who sought refuge here after the Battle of the Little Bighorn. Palaeontologist Emily Bamforth introduces the team to Scotty the T.rex and invites them to help excavate a brontothere, or Thunder Beast. Rudy, Jen and Jacob borrow horses at Reesor Ranch and ride through the scenic Cypress Hills surveying for evidence of the ancestors.