In the year 20XX ---- In a world where robotic engineering has greatly advanced.
World panic caused the collapse of capitalism and brought about a new socialism, under which the government had manual labor mechanized and food, clothing and shelter was thoroughly managed. The principle of competition was lost and warring ended, bringing about what seemed to be an everlasting peace.
Although robotic advancements helped to maintain public order and development, people began to feel suppression and social stress due to these peace keeping measurements. As an outlet, a government sponsored public robot battle competition known as the "Battle Colosseum" was created. Little did they know, a new threat to mankind was afoot.
Dr. White created 9 robot siblings known as the "Mighty Numbers", who were the most popular and powerful team of robots in the Battle Colosseum and always in the top ranks. But, during one competition there was a sudden act of cyber terror, infecting them with a computer virus causing them to become crazed and rampant.
The crazed siblings took control of various key facilities and utilities. The virus continued to spread to all the robots of the world. It is now up to the lone Mighty No.9 "Beck", who remains unaffected by the virus. Beck, who had always been the weakest link on the team, was now entrusted with the future of all humanity!