Watchtower

Things are getting better for Ben and the rest of the Unisquad. Rover is mostly helping with the mechanical problems at Hall of Justice or at the Watchtower.

Mr. Teriffic: Rabbit, how's it going?

Rover: Its Rover. Take an easy, you're only a genius on Earth pal...

Tokyo

Rook and Kasha is in Tokyo to take down the Foot clan with "Batman Inc" and the Teenage Mutant Ninja Turtles to defeat Shredder and the rest of the Foot Clan.

Space

While Ben and the two Green Lanterns (Hal Jordan and John Stewart) are fending off the Dominators at space.

Apokolips

Meanwhile, at the Apokolips, Darkseid is sending hi furies to get the Null Void from a Maxium Prison floating on space. Darkseid believed that there's a half Osomosian - half Human to find.

Space, on a Maxium Security Prison

The female furies and the Parademons are attacking the guards, some of them have drone. They're not trying to free any prisoner inside the prison, but to get an item; which is the Null Void projector, safely secured inside the a storage.

Space, Outside the Watchtower

Based on the Darkseid's orders, The furies opened the Null Void and unleashed Kevin out to space. Kevin, who already absorb Ben's Ultimatrix years ago and combined with Ben aliens, began to remember how things happened to him.

Monster Kevin is now about as big as Humungousaur with Fourarms' legs and "four arms". The right upper arm contains Diamondhead's arm with silver barrels on his knuckles to shoot "rocket hands", the left upper arm contains Ultimate Swampfire's arms also with silver barrels on his knuckles to shoot "rocket hands" as well, and the lower arms contains Ultimate Wildmutt arms, Jetray's eye's and tail, Terraspin's chest and a red Ultimate Big Chill's "jacket" and wings.

(FLASHBACK, Rooters base camp)

16 year old Ben, Teenage Rook, Teenage Kasha, Rover, and Zog went to attack the Rooters' base camp to ensure that no child will ever be made into soldiers again. Kevin's squad and Servantis are attacking back the Unisquad. Kevin uses his Osmosian powers and snuck in towards Ben then absorbed his Ultimatrix which turns him "Monster Kevin".

16 year old Ben transformed into Humungousaur, then evolved into Ultimate Humungousaur. Even Ultimate Humungousaur is struggling to go against Monster Kevin. But Rook found the Null Void projector and trapped Kevin inside the Null Void.

(NOW) Space, Outside the Watchtower

Monster Kevin: Now, time to have a little reunion with Ben Tennyson...

Monster Kevin flew towards the Watchtower.

Watchtower

Then the alarm at the Watchtower, as something's approaching

Mr. Teriffic: (using his speaker) Unknown lifeform, please identify yourself

But no respond. Rover is taking a closer look by zooming in the holographic screen, then he looked at it with a horrifying look.

Rover: Oww shit... (then look towards Mr. Teriffic). Humie, were into shit right now...

Mr. Teriffic: What's wrong?

Rover: That's Kevin Levin, a half Human half Osmosian...

Monster Kevin charges towards the Watchtower from its windows and made himself intangible to go inside the Watchtower. Then Mr. Teriffic, Rover, and some of the League members are armed and ready for a fight against Monster Kevin.

Monster Kevin: (demanding tone) Where's Ben?!

Mr. Teriffic: (sarcastic tone) Busy. Can I help you?

Monster Kevin: Yeah! Call him now, before the rest of you will going to end up in a hospital...

On Space, Inside Javelin

Ben and the two Green Lanterns (Hal Jordan and John Stewart) are on their way to head back to the Watchtower, then a distress call from the Watchtower.

Rover: (from his comm) Hey humie, we've got a problem...

Ben: What is it?

Rover: (from his comm) Hey Humie, we've got a problem...

Ben: You better not shitting yourself...

Rover: (from his comm) Kevin's back shithead! And he's very angry...

Ben: Do everything you can to hold him off, We're almost back to the Watchtower

Watchtower

At the Watchtower, couple of the League members, such as Vigilante, Shining Knight, Metamorpho, Fire, Black Canary, and others are lying on the ground, injured and barely concious. And couple of the Watchtower's equipments and the Zeta teleporters are damaged due to the fight against Monster Kevin. Monster Kevin appears to be absorbing Ice's powers then throw her away. Only Mr. Teriffic and Rover remains.

Mr. Terrific throwing his T-spheres towards Monster Kevin, but froze the T-spheres using Ultimate Big Chill's firey ice-breath. Rover is shooting with his blasters but Monster Kevin doesn't seem to be bothered.

When Mr. Terrific and Rover are cornered, Ben, already transformed into NRG, blasts Monster Kevin using his heat vision.

NRG: Enough Kevin!

Monster Kevin: There you are Tennyson...

NRG and the two Green Lanterns are getting ready for the fight

John Stewart: Terrific, Rover! Go help out the others!

Mr. Terrific and Rover left to help out the injured League members, while NRG and the two Lanterns are fighting off Monster Kevin

Hal Jordan: We lanterns eat monsters like this for breakfast...

The two lanterns uses their power rings to bind Monster Kevin, but he absorbs the ring's power using Chromastone's power absorbtion. Then Monster Kevin uses Lodestars magnetic powers to throw away NRG far away.

The two lanterns are blasting Monster Kevin but doesn't seem bothered by Monster Kevin

Monster Kevin: I want your powers

Monster Kevin blasts both lanterns using Chromastone's energy beams from both arms. The two lanterns are shielding Chromastone's energy beams but then the shield breaks and knocks off the two lanterns. Then Monster Kevin grabs the two lanterns and absorbs their powers.

After that, NRG shoots his heat vision again towards Monster Kevin; he grunted but returns a favor after Monster Kevin uses Brainstorms electric blasts coming out from his forehead. NRG is doing his best to block the electrical powers, but Monster Kevin keeps pushes his electrical powers until pushes NRG away.

Monster Kevin: Your time will come Tennyson!

Then Monster Kevin uses his intangibility to fly off the Watchtower. After that, Hal Jordan and John Stewart approaches NRG, after he changes back to Ben.

Hal Jordan: So what does he wants?

Ben: (in a serious, dark tone) Your powers, yours and the rest of the League members. Once he'll absorb all the League's powers, he'll be unstoppable. Then he'll get his revenge towards me. Unless I stop him, for GOOD!