Justice League - Season 2 - Eps 4: Tabula Rasa (2)
Even Superman is unable to defeat the android once it duplicates all of the League's powers. Only with the aid of J'onn, suffering a crisis of faith when he is overwhelmed by humanity's pettiness during a telepathic scan, can they turn Amazo against Lex.
About Justice League

Title: Justice League
First Air Date: 2001-11-17
Last Air Date: 2004-05-29
Status: Ended
Rating: 8.1/10 (from 504 votes)
Language: EN
Seasons: 3
Total Episodes: 50
Network: Cartoon Network
Genres: Action & Adventure, Animation, Sci-Fi & Fantasy
Production Companies: Warner Bros. Animation, DC
Synopsis
The long-awaited rebirth of the greatest superhero team of all time: Batman, Superman, Wonder Woman, The Flash, Hawkgirl, Green Lantern, and Martian Manhunter.
Cast

Kevin Conroy
Batman (voice)

George Newbern
Superman (voice)

Susan Eisenberg
Wonder Woman (voice)

Phil LaMarr
Green Lantern (voice)

Carl Lumbly
J'onn J'onzz (voice)

Michael Rosenbaum
The Flash (voice)

Maria Canals-Barrera
Hawkgirl (voice)