In the 21st century planet Earth was rendered inhospitable to life, and people mass-migrated to Planet Zi, the natural home of metallic life forms known as Zoids. Many years later, Zi faces its end.

Zoids made a big splash in 1982 with its model kits, but it was the anime adaptations that really cemented its popularity in the West. The series was so much more than just robots fighting each other.