Volume One: 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. Volume Two: Being a teenage hero is tougher than you think! Ben is back with even more alien powers and mysteries to uncover. Between alien secrets, family secrets, and not-so-secret crushes. Ben has more adventures than he can handle. But with the help of Gwen, Kevin, and all-new alien heroes like Spidermonkey - Ben is always ready to go hero! Volume Three: Ben is on call for more daring rescues than ever, and it seems like everyone needs his help - including the bad guys! Whether he's trying to beat the clock to battle a retro monster or sort out a squabble between a dragon and the Forever Knights, he's always in demand. Now, if he can just learn how to handle his brand-new Alien X powers, Ben will have everything under control. Or so he thinks! Volume Four: Make no mistake - Ben, Gwen and Kevin are back for all-new adventures including a battle against Ben's evil twin! Volume 4 is packed full of alien heroes, nasty villains and a whole lot of trouble. When he's not teleporting to distant planets or rescuing the Earth from destruction. Ben even tries to give dating advice to Kevin. Now there's a challenge! But with his heroic bravery and powerful Omnitrix. Ben can handle just about anything.