Walking with Dinosaurs S01E05 - The Journey North

Based on an unprecedented discovery deep in the forested mountains of Alberta, Canada, this episode tells the epic tale of a Pachyrhinosaurus herd, one of the largest dinosaur groups that ever lived, through the eyes of its young member, Albie. A pack of Gorgosaurus stalks the herd. Palaeontologists unearth the remains of hundreds of Pachyrhinosaurus, a relative of Triceratops, discovered together.