Dr. Vasi invents a super-powered robot, Chitti, in his own image. The scientific body, AIRD, that must approve the robot, declines it based on its not having emotions and the ability to make rational judgment. A sudden flash of lightning evokes emotions in the robot, and Chitti is seemingly ready for integration into the human world. Then, Chitti falls in love with Dr. Vasi's fiancée Sana and turns on his creator.

An ornithologist who commits suicide returns as fifth force to wreack vengeance on mankind for harming birds with mobile phone radiation. The only thing that is standing in his way is 2.0, the upgraded version of Chitti, the robot.