A routine night in Gotham City for a young Batman proves to be anything but routine when the crime-fighter is confronted with a sort of foe he's never faced before -- one from beyond the stars! A universe of possible alien threats leads Batman to make a daring decision -- to venture alone into the far reaches of the cosmos for the very first time, where the Dark Knight will face the fight of his life! Superstar writer Jason Aaron delivers his first Batman story ever, partnered with blockbuster artist Doug Mahnke for a unique, brutal tale!