Yesterdays War;

James Stevenson was a billionaire Australian industrialist who loved to push the edge of science in the course of his business ventures. When one of his research projects opened a portal into Earth’s past, he had no idea that he would be using it less than a day later to escape a world doomed by a cataclysmic nuclear war. Now, James has had to assume a new identity on an Earth nearly a hundred years before he was even born. His quest is to somehow try to change history and prevent the devastating future war that only happened yesterday for him.