When brilliant video game maker Flynn hacks the mainframe of his ex-employer, he is beamed inside an astonishing digital world and becomes part of the very game he is designing. In his mission through cyberspace, Flynn matches wits with a maniacal Master Control Program and teams up with Tron, a security measure created to bring balance to the digital environment.

Sam Flynn, the tech-savvy and daring son of Kevin Flynn, investigates his father's disappearance and is pulled into The Grid. With the help of a mysterious program named Quorra, Sam quests to stop evil dictator Clu from crossing into the real world.

In a futuristic New York known as New Rome, visionary architect Cesar Catilina dreams of building "Megalopolis," a utopian city that redefines society’s limits. Opposing him is the corrupt Mayor Franklyn Cicero, who clings to power and profit. Between them stands Julia, the mayor’s daughter, whose love for Cesar forces her to choose between loyalty, ambition, and the fate of humanity.