Year Zero is a spin-off of the Megarette - Savage New World trilogy. In a post-apocalyptic scenario, Year Zero retraces 300 years of a future humanity forced to live under the constant threat of the Neanderthals, a human species once considered extinct, and their giant monsters, awaiting the return of the divine Megarette, a steel giantess with superhuman powers. The book includes six stories told by Megarette herself and illustrated by six different artists. They feature new characters and old acquaintances previously seen in the Megarette - Savage New World trilogy.