Two years after the events of the original robot uprising, we follow the adventures of Johnny 5, a highly advanced and self-aware robot who has come to the bustling city to help his inventor's friend, Ben, sell toy versions of Johnny 5. Struggling to adapt to urban life, Johnny 5 becomes enthusiastic about his new surroundings and displays a childlike curiosity. Meanwhile, Ben teams up with streetwise hustler Fred Ritter to market his robotic toys, hoping to get rich quickly. Their business, however, faces numerous challenges, including competition, skepticism from buyers, and the constant threat of financial failure.

As Johnny 5 endeavors to understand human society and make friends, he inadvertently stumbles upon a scheme by a group of criminals, led by the ruthless Oscar Baldwin, who plot to use Johnny 5's capabilities for their own gains. The more Johnny 5 explores and learns, the more he becomes embroiled in the criminal conspiracy, putting him and his new friends in jeopardy. As he uncovers the true intentions of those around him, Johnny 5 must navigate this complex and dangerous world, relying on his abilities and newfound allies to survive and thwart the impending threat.