Brainiac, the malevolent artificial intelligence, forges an unholy alliance with the brilliant but twisted Professor Ivo and the nefarious Lex Luthor. Their goal: to infiltrate the inner workings of the Justice League of America (JLA) and gain access to their most closely guarded secrets. To achieve this, they create the Amazo android, an unstoppable machine with the ability to replicate the powers and abilities of every JLA member. As the JLA faces an unprecedented threat, they must battle a dark mirror of themselves and prevent Brainiac's sinister plan from succeeding.