Los Angeles has been overtaken by a virus known as Sudden Death Syndrome, a disease that causes its victim to die suddenly and has only one symptom... spontaneously breaking into well-choreographed song and dance.
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.
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.
Some time between 'Tron' and 'Tron: Legacy', a young program named Beck becomes the skillful leader of a revolution inside the computer world of The Grid.