The JLA , except for Aquaman and the Martian Manhunter , follow Luthor to the alternate Earth .
This leads them to Alexander Luthor , who informs them of the other Earth and asks for 48 hours of their time to help the oppressed world .
The JLA , except for Aquaman and the Martian Manhunter , follow Alexander Luthor to the alternate Earth .
This leads them to Alexander Luthor , who informs them of the other Earth and asks for 48 hours of their time to help the oppressed world .