The earth continues to suffer from the throes of mankind's pollution and environmental destruction. The Empire of Machines secretly schemes to take over the world and have succeeded in creating supreme Roboticks known as B'T (Beat). In a crucial battle, a dissident by the name of Teppei is gravely injured. The blood loss resurrects a B'T known as X. Now Teppei and B'T X battle the evil empire in an attempt to save humanity.