Zoids Wild ZERO - 46

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. Its inhabitants partake in the journey to migrate back to Earth. Attempting to regenerate the Earth to make it hospitable, the migrants devise a "Zi-Forming" scheme. However, the plan fails, and Earth is left in turmoil. Overrun by Zoids and blanked by unstable weather phenomena, the migrants face a difficult life. The Empire and Republic settlements attempt to uncover Zoids buried within the Earth to bolster their respective armies. The story picks up the following second-generation Earth citizens: Leo Conrad and Buzz Cunningham, who have a chance encounter with a girl named Sally Land as she flees the clutches of the Empire.