Scientists study the battles of prehistoric creatures, such as dinosaurs, before they became extinct. Each episode features a forensic-styled breakdown of a prehistoric battle. Based on fossil evidence and paleontologic analysis, a computer-generated imagery rendering of the battle, based on the evidence and the imagination of George Blasing (the show's host) is the final act of each episode. In most cases, the battles are based on actual fossil finds, although in several episodes, scientists simply pit two contemporaneous prehistoric animals against each other.