The life of American dinosaurs is seen in amazing detail. The Feathered Dromeosaurs (Raptors) debut on this film along with the bizarre Therizinosaur. Each story is compelling and well-written. From a Coelophysis exploring the world around him to a teenage Tyrannosaurus learning from his mother how to hunt and even a love story between two Stegosaurus. This film also shows audiences real fossil finds and museum displays to show the researchers work. This is educational, thrilling, and is a well-executed Discovery Channel response to BBCs ground-breaking Walking with Dinosaurs miniseries.