Through the ages: Visitor of the apocalypse

In a world of death and life. where humanity hangs on a thread. a visitor came, would he save the remnants of humanity? and lead them back into a new peak? or, would he guide the new dominant race of this new order. who knows, but I know its a story worth writing. Arc 1 Not the worst apocalypse. Follow as Daniel Explores this new apocalyptic world. limiting himself to that of a 1st tier Astral psion. with a body strong enough to decimate 21 century armies barehanded.