When an unseen enemy threatens mankind by taking over their bodies and erasing their memories, Melanie will risk everything to protect the people she cares most about, proving that love can conquer all in a dangerous new world.

John Carter, a Civil War veteran, who in 1868 was trying to live a normal life, is "asked" by the Army to join, but he refuses so he is locked up. He escapes, and is pursued. Eventually they run into some Indians, and there's a gunfight. Carter seeks refuge in a cave. While there, he encounters someone who is holding some kind of medallion. When Carter touches it, he finds himself in a place where he can leap incredible heights, among other things. He later encounters beings he has never seen...