The first episode of Season 1, titled " The Day That Everything Changed ," originally premiered on April 23, 2010 , on Cartoon Network. The episode introduces a world five years after a global catastrophe known as the Nanite Event , which infected every living thing on Earth with microscopic machines called nanites. These nanites can randomly activate, transforming hosts into dangerous monsters known as EVOs (Exponentially Variegated Organisms). Episode Plot Summary
: The series opens with 15-year-old Rex helping the government organization Providence by subduing and curing a giant, multi-headed EVO terrorizing New York City. Watch Generator Rex Season 01 (Dub) Episode 1 f...
: Frustrated by his lack of freedom, Rex sneaks out with his friend Bobo Haha, a talking chimp, and meets a teenager named Noah Nixon . This brief moment of normalcy is interrupted when Providence agents arrive to retrieve him. The first episode of Season 1, titled "