Watchtower
While Monster Kevin got away, Ben and the two Green Lanterns (Hal Jordan and John Stewart) are checking out and helping the injured League members. Then Hal Jordan approaches Ben.
Hal Jordan: Okay, Is there something that you wanted to tell us?
Ben explains about his with Kevin and the rest of the Rooters. Ben has stop the Rooters and destroyed the Rooters years ago. But Kevin has absorbed the Ultimatrix power, and makes him loose control. Finally, Rook vanished him to the Null Void.
Ben: -but I have no idea how the heck did he escaped the Null Void. It was supposed to be locked away from a Maxium Security.
Hal Jordan: Whoever it is, he or she is must be dumb enough to unleashed this "Kevin guy".
Ben: I've gotta contact Rook.
Ben is contacting Rook with his Ultimatrix. However Rook and Kasha is in the middle of his recovery at Gotham, being aid from the Batman, after their mission in Tokyo. Then Ben went to the Javelin, and flew the Javelin to Earth to stop Monster Kevin.
Ancient Mayan Temple
Aftering hearing the emergency call from the Justice League, Zatanna and Dr. Fate went to the Ancient Mayan Temple. Dr. Fate had informed Zatanna that they need to recover an ancient artifact called "The Dominus Librium". Although it was orginally an alien origin, it was still a valuable item to recover to "absorb power". Dr. Fate was hoping that the Dominus Librium will cure Monster Kevin
Zatanna: Are you sure that the Dominus Librium will cure this Kevin guy?
Dr. Fate: Positive. While we retrive this artifact, assuming that "the others" stop Kevin.
Zatanna: I have the bad feeling about this...
Then couple of ancient Mayan Monsters risen and appears towards Zatanna and Dr. Fate
Zatanna: Ugh... Could this day get any worse?
Metropolis
Meanwhile in the city of Metropolis, Monster Kevin was seen absorbing Elongated Man's power. Then Metamorpho shows up and shoots couple of his flamethrowers towards his arms, but Monster Kevin uses Terraspin's wind-power coming out from his chest and blows Metamorpho away. After Metamorpho being knock away, Monster Kevin quickly absorbs Metamorpho's power. When Superman flew to approach Monster Kevin, Ben called Superman towards his comm
Ben: (on his comm) Superman! Can you read me?
Superman: I read you, what's wrong?
Ben: (on his comm) Whatever you do, stay away from that monster you're going after...
Superman: I can't just back off and do nothing!
Ben: (on his comm) That's exactly you're going to do! You come towards that monster, he'll catches you and makes him stronger!
Superman: I've dealing with someone who's "power-hungry" like him before...
Ben understood about what Superman meant, which is Parasite. But Ben is still worry about how dangerous Monster Kevin really is.
Ben: (on his comm) He's more insane and more powerful than Parasite
Superman: I'll take my chances...
Superman reaches down to Metropolis, and found Monster Kevin. Both are preparing for a fight.
Superman: I don't know who you are, But I'm sending you back to whatever hole you've came from.
Then Superman and Monster Kevin is charging towards each other. Meanwhile, Ben, already transformed into Jetray, is flying towards Metropolis, while Cyborg, is at the Hall of Justice is alerting an "Alpha-treat" alert to any Leaguers about Monster Kevin.
When Jetray get arrives, Superman was being punched down towards the ground, which creates a big crater of hole in the ground. Then Monster Kevin flew towards Superman to the ground then absorbs his power as well.
Jetray: Oww crap...
After Monster Kevin absorbs Superman's power, Monster Kevin is about to make his finishing blow.
Monster Kevin: You're not so tough as I thought Superman...
Jetray: Enough Kevin!
Jetray lands to the ground and press the Ultimatrix dial to transformed into Humungousaur, then pressed the Ultimatrix dial again to evolved into Ultimate Humungousaur.
Ultimate Humungousaur: (with his dark tone) This is between you and me...
Monster Kevin: Sounds good to me...
Monster Kevin threw Superman away, leaving him unconcious...
Monster Kevin: What's wrong Ben? Happy to see you "camping buddy?" Hehehehehe
Ultimate Humungousaur: I've tried to help to get a better life, to get away from the Rooters, but you've still chose to be one of Servantis' lapdog!
Monster Kevin: Unlike you, you're nothing more than a stray!
Ultimate Humungousaur: (with his dark tone) At least I'm free, away from the Rooters. If you want your revenge, come and get it...
Monster Kevin and Ultimate Humungousasur are charging towards each and begin their epic fight.