Kari, T.K., and Zane were busy fighting this creature that was half human and half snake down at warehouse district. Kari tried using her magic and tossing some items at him, but he slithered out of the way.
"Just who is this guy again?" T.K. said.
"I am Python the human sssssnake." Zane tackled him with his arms covered in metal. He tried to pound him, but Python kept moving and sprayed acid in Zane's face.
"Aw that burns." Zane said.
"We need to keep him from moving. Where's Davis?" Kari said.
"Worry about that later, I have an idea." T.K. said. He knocked over a barrel of oil. Python tried slithering at him, but he slipped in the oil and banged against the wall.
"Look who finally showed up." Zane said as they saw Halsemon and he turned into Bigmamemon with a metal.
"Sorry I'm late guys." Bigmamemon said.
"Where have you been?" T.K. said.
"Coach wouldn't let me go until soccer practice was over." Bigmamemon said. "Can you get me rolling?"
"No problem." Zane said as he closed his hands together and pounded him in the back and had Bigmamemon roll and knock out Python with Davis turning back.
"That wasn't so hard." Davis said.
"We've been fighting that guy for about an hour." T.K. said.
"Sorry, but that coach wouldn't let me out of his sights." Davis said.
"What's with the metal?" Kari said.
"Oh another reason. I got another metal for ending the war with the Hybrid which reminds me I need to get a shelf." Davis said. T.K. and Zane just walked away irritated after hearing that. "Guys come on."
….
The Park
"Shot gun called it." Andy said as he and the other plumber kids were with Tai in his R.V.
"You're already riding shot gun so why do you keep calling it?" Heather said.
"Because it's fun to yell it." Andy said.
"Settle down Jr." Tai said. Then a computer screen came up making a beeping sound. "That's weird, we better check this out." At the center of the park space ships appeared out of nowhere in the sky with police forces watching as a Reapmon was setting up a machine.
"It is all set master." Reapmon said and in a flash of light Davis's old nemesis Diaboromon appeared. "Now for no interruptions." Reapmon pressed a button and a force field came up around the park.
"After all these years I have returned to Earth to claim what is rightfully mine." Diaboromon said.
"A kick in the can." He saw Tai and the plumber kids.
"Tai Kamiya it's been a while." Diaboromon said.
"Careful with this guy. He's dangerous." Tai said.
"I can be, take a good look." Diaboromon said as he fired his web wrecker attack, but they all jumped out of the way.
"He does seem powerful so we'll have to outsmart him." Heather said as she ran around, but Diaboromon slammed his claw down causing the ground to shake and she lost balance.
"Cable Crusher."
He stretched his claw and grabbed Heather slamming her to the ground.
"Heather!" Tai shouted. Alex flew up and created a fire tornado, but when he stretched out his arms it subsided. He jumped up and blasted Alex at point blank range knocking him out. Andy ran in and pounded Diaboromon across the face with all his arms. Spike jumped over his shoulders and launched spikes at him, but Diaboromon grabbed him and slammed him to the ground.
"Okay try these." Andy said as he reached for his blasters and started firing, but Diaboromon was able to push through and grabbed his top two arms. He lifted him and blasted him and tossed him down.
"Now where is Kamiya?" Diaboromon said.
"Right here." Tai said coming out of a cloaking device and blasted Diaboromon right in the face with a blaster. He waited for the smoke to clear, but with one swipe of the arm Diaboromon knocked Tai out.
"Shall we drained their power and add it to your own?" Reapmon said.
"No, in one Earth rotation my forces shall return to this planet." Diaboromon said. "Then I shall challenge Davis Motomiya to a duel where if he wins I shall leave this planet, but if I win I will take the omnitrix and rule over this world."
…
Smoothie Joint
"I'm serious Davis. We're getting tired of hearing how we saved the universe." T.K. said.
"It's not my fault I'm so awesome that I saved the whole universe." Davis said.
"Davis we are getting tired of hearing it all the time." Kari said.
"And I don't think you are awesome. I think you're obnoxious." Zane said and they all looked at him surprised he used a word like that. "What isn't that what Kari says about me?"
"Yep." T.K. said.
"We saved the whole universe from the Hybrid." Davis said. "So lighten up have a smoothie on me."
"Okay here's a smoothie on you." T.K. said as he pulled back the back of Davis' collar and poured his smoothie down his back with him and the others laughing.
"I hope you like berry." Davis said ready to pour it on T.K.
"Come on Davis you were the one that said lighten up." T.K. said. However Davis didn't do it as the omnitrix went off.
"Davis are you there?"
"Tai is that you?" Davis said into the omnitrix.
"Yeah I got bad news. Diaboromon is back." Tai said.
"Diaboromon again?" Davis said.
"Yeah and he seems even stronger." Tai said. "He's challenging you to a duel where if you lose he'll claim the omnitrix and Earth."
"What if I win?" Davis said.
"Then he'll leave Earth." Tai said.
"How do we know if he'll even keep his end of the bargain?" Davis said.
"Trust me this Diaboromon is different from the one we fought on the internet." Tai said. "He maybe a lot of things, but he always keeps his word."
"Still how bad could it be?" Davis said.
…
Zane's Garage
They looked over the battle that just happened in the park on a computer.
"Oh get him Tai right in the face." Davis said until he saw Tai got knocked out.
"He seems so much stronger." Kari said.
"We've beaten him before we can do it again." Davis said.
"Davis this is serious. Apparently Diaboromon has faced ten different digimon that were incredibly strong and defeated them." T.K. said.
"I'm not worried one little bit." Davis said.
"You should be worried. All those digimon he defeated, he drained their power and added it to his own." T.K. said.
"Can't you just use the master control and take him down?" Zane said.
"The master control was shut down after we defeated the Hybrid." Davis said.
"Really then why didn't you say so?" Zane said as he showed them a giant machine. "I bet with this we can access master control."
"I don't know. If you want master control maybe you should talk to Azmar." Kari said.
"I doubt he'll let me use it in a situation like this. He only let me used it last time because the universe was at stake, not just one planet." Davis said.
"Still I think this is a bad idea." T.K. said.
"How bad can it be?" Davis said as he placed the omnitrix on a table.
"Trust me I bet we can get passed it without any worries. A friend of mine told me this is a real deal." Zane said.
"You mean back when you stole tech." Davis said.
"Let it go Davis." Zane said.
"It seems too risky." Kari said.
"Kari's right, this is the omnitrix we're talking about." T.K. said.
"It will be fine." Davis said. Zane activated a mini laser that hit the omnitrix, but made it look like how it use to three years ago.
"Davis that doesn't look right." Kari said.
"Here let's try this." Zane said as it changed back to normal.
"Davis maybe you should stop now." T.K. said and Zane noticed the screen on the controls was glowing red as the omnitrix started to glow.
"Never mind that it's overheating. Dumb the watch." Zane said.
"It'll take too long. Run for it." Davis said, but Zane went to help get the watch off.
"Maybe I can…." Zane didn't finish because there was a bright light that turned into an explosion.