"TRON: Uprising, Beck's Beginning" introduces Beck, a young mechanic living in Argon City, a growing metropolis in a far off corner of The Grid that has just been occupied by General Tesler, a henchman of the notorious Clu. After his best friend Bodhi is ruthlessly derezzed by Clu's army, Beck seeks justice for his lost friend and launches a crusade against the regime. His rebellion captures the attention of Tron, the greatest warrior The Grid has ever known, who sees the potential in Beck and trains him to be his successor. Labeled with the moniker of The Renegade, Beck sparks a revolution to fight for the freedom of The Grid.
In the premiere episode, "The Renegade Part 1," Beck's training with Tron is interrupted when he's captured by a Recognizer patrol and sent to the Coliseum to fight in the games. There Beck meets a fellow prisoner Cutler, a fierce warrior program who has been inspired by The Renegade's actions. Recharged by their shared passion for freedom, Beck and Cutler fight their way out of the deadly disc games. Meanwhile, Zed and Mara head out for night on the town, but run into trouble when an enchanted Zed is lured away by Perl (voiced by Kate Mara), a program from the wrong side of the tracks.
As Clu's forces begin an energy mining operation near the city of Argon, it has the side effect of causing blackouts throughout the city. Beck and tron learn of this and decide to plant a bomb on the mining station, but a race is about to tear through tunnels which will become engulfed in flames. Can Beck save everyone in time?
The Renegade recruits three fearless supporters who have expressed their commitment to the revolution by tagging the grid with the message that "Tron Lives." After inviting them to join in the resistance, he discovers one of them is his best friend Mara and has to convince them that tagging is not the right path and devise a new plan targeting Tesler's ship.