On Planet Zi, in Blue City, a boy named R.D. works as a delivery boy for the Mach Storm team; he pilots his Liger Zero to help with his job-related tasks, but often finds himself in the middle of a Zoid battle as well. However, R.D.’s personal mission is to find the Alpha Zoid, the legendary machine that his father spent his lifetime trying to find. Along the path to fulfilling his dream, R.D. must deal with rivals such as Blake and the Savage Hammer team, and also somehow figure out the secrets of the Fuzor Zoids!