In a future where alien beings consume technology as a few humans try to preserve it, Strata, her brother, and a friend are separated from their caravan and, with a wonderful robotic horse, must fight their way back.

Captain Raptor and the crew of the Megatooth are called back into action to save the planet Jurassica from rogue space pirates.

After discovering the truth about how he lost his memories and Dr. Horizon's true identity, Hilo goes back to Earth and tries to prevent Razorwark from destroying the world--and everyone in it