After a solar storm knocks out power all over Tokyo, robots throughout the city run berserk and attack! Now it's up to Kaito to shut down the robots and save the entire Tokyo metropolitan area somehow...
Experiments with the magnetic monopole get underway, and more information from the Kimijima Reports comes to light. Details about an impending solar storm are revealed.
Airi finds her existence threatened when major maintenance is scheduled for the IRUO. Server. While Airi clings to the hope of a snowy miracle, Kaito learns more about her past.
After the accident with GunBuild-2, the school's vice principal shuts down the Robot Research Club for good and orders that all of the club's robots be dismantled.
At long last, the Robot Research Club completes its giant GunBuild-1 robot! And, as people from all over the island watch, the robot takes its historic first step!
The Robot Research Club is shocked to hear that not only has Doc been rushed to the hospital, but also he is considering closing his shop. Junna tries to encourage him to keep it open, but her fear of robots makes it difficult.