Prehistoric creatures roam the Earth once again in this BBC series that imagines a world in which the nature, and perhaps time itself, is reversing. Can evolutionary zoologist Nick Cutter (Douglas Henshall) and his crack team of scientists figure out why dinosaurs, giant spiders, and saber-toothed tigers have taken dominion? Or why, for that matter, Cutter's dead wife has returned? If they can, the human race may be saved before it's knocked to the bottom of the food chain. Polished special effects give PRIMEVAL plenty of spectacle, but the series doesn't skimp on story with twists and turns that will keep viewers hooked. This collection presents the first two seasons of the sci-fi series.