Infected by microscopic molecular-altering nanites, 15-year-old Rex has the ability to grow incredible machines out of his body. Recruited by an organization called Providence, Rex travels the world investigating a host of biological mutations that were created by the same nanites that give Rex his powers. "Generator Rex" is from Man of Action, creators of Ben 10. John Fang of Cartoon Network Studios serves as supervising director. (Source: cartoon network)