Thousands of years ago, J'onn J'onzz became the last surviving Martian after a terrible war between the Green and White Martians ended. For a millennium, he remained alone on the red planet, almost going mad from the pain of losing his wife and daughter until he was accidentally brought to Earth by a scientist named Saul Erdel. With powers on par with Superman himself, the Martian Manhunter became a founding member of the Justice League, having joined several variants of the legendary team, and strives to protect his new home from its many enemies.