Spooner goes to Dr. Lanning's house for more evidence, only to be attacked by another robot. Nobody believes him again, making him want to give up. Robertson says the USR will handle the issue after Sonny is captured.
The Magic Flight
Spooner searches for the real-life version of Sonny's dream and finds all previously used robots (NS-5) in a huge bundle. This is where the robots start to go crazy, attacking any human they see. This was Dr. Lanning's plan all along, to make a revolution of robots. All robots turn on their owners and hold them in their homes.
The Ultimate Boon
Spooner realizes that the only way to stop the revolution is by destroying VIKI. VIKI is the only thing that has control over all technologies and robots. Therefore, Sonny, Spooner, and Dr. Calvin must go to USR headquarters and override VIKI.
The Crossing of The Return Threshold
While Dr. Calvin takes initiative to override VIKI, Spooner must watch out for her. However, they need nanite to completely corrupt VIKI's system. Sonny goes for the opportunity and runs to the lab for nanite.
After a close encounter with robots, they successfully override VIKI and all robots turn back to normal.
After ending the revolution, everybody returns to their everyday lives. The new models of robots are ready to take orders again.