Ben 10 Ultimate Alien Volume 1
Volume 1: It's been five years since Ben defeated Vilgax and removed the Omnitrix. But now Grandpa Max has mysteriously disappeared. The world is threatened with an imminent alien invasion. And it's up to 15-year old Ben to discover the leader within. Along with his cousin Gwen and former nemesis Kevin he must create a force strong enough for the ultimate galactic battle.