"The Battle for Earth!" 100 million years ago, the dinosaurs evolved intelligence and escaped into space to avoid the Ice Age. Now they've returned, and they're bent on the extinction of Man! Astronaut Hank Armstrong struggles to save a convoy from biomechanical Jurassic weapons. On the other side of the world, Debra McDonald, a waitress with a dead-end job, encounters a different species of dinosaur. Will these newcomers make a difference? And if so, can they do it in the few hours left before Humanity is wiped out?