I Don't own Kids Next door.

The delightful children glared at Wally, who was looking at the ground."What is the matter with you! Why didn't you finish her off!"They shouted."I am sorry, it won't happen again,"he said, still looking down in shame. The childrren growled in frustration."It better not, or we will destroy you. Tommorow, we destroy the kids Next Door!"They all exclaimed, laughing evily.

Everyone in the treehouse woke up early, during a thunderstorm. Numbuh 3 was still trying to figure out why Wally didn't kill her, but stopped thinking about it for a second. They all went to the living room because Numbuh 1 had an announcement. He sighed sadly."You guys, I'm not going to lie to you, but Wally, our old friend, is working for the delightful children, and like any enemy that threatens the Kids Next Door, we have to stop them at any means necessary,"he said sadly. All the kids looked down in sadness, if it came to it, they would have to destroy Wally.

They were all silent for a long time, trying to understand the situation at hand. When suddenly, the ground beneath them started to shake. They all looked up in shock, knowing what or who was coming."Oh come on!"Numbuh 5 shouted, irratated. Suddenly, the wall behind Numbuh 1 exploded, revealing the delightful children in a huge robot with 5 giant robotic arms, and a large assortment of deadly weapons, cannon, guns, lasers, and many more weapons, and standing with the robot, was Wally. They all smiled evily down to them.

"Hello Kids Next Door, did you miss us?"The children asked. The kids growled and grabbed their weapons. The delightful children sneered."Wally, take Nigel and Kuki, we'll take the others, and don't fail us this time,"they ordered. Wally nodded, activated his jets, and flew Towards Numbuh 1 and 3, while the children bounded towards Numbuh 2 and 5. Numbuh 3 lifted the T.H.U.M.P.E.R and tried to shoot a bear at him, but Wally caught it in mid air and discarded it, then flew into the air. She continued to shoot more bears at him, but he either blew them up with the laser or just dodged them altogether.

Numbuh 3 pulled the trigger, but nothing came out. She looked, and saw she ran out of ammo. Wally smiled and flew towards her, grabbing her and slamming her into a wall. He held a firm grip on her throat, tightening it and cutting off her oxygen. She struggled to get him off, but with his grip and the gloves, it was harder. He started squeezing harder, but unexpectedly let her go, ejected the saw from his right hand, and swung around, slicing Numbuh 1s S.P.L.A.N.K.E.R that he was about to use on him in half, then punched Numbuh 1 away from him and landing where the delightful children were fighting Numbuh 2 and Numbuh 5.

Numbuh 3 noticed a discarded T.O.Y.S nearby. She ran to it, grabbed it, and pulled the switch, sending the yo-yo towards Wally. He saw the Yo-yo heading towards him, thanks to the targeting visor, and grabbed the string before it hit him. He activated the jets, yanked the weapon out of her hands, and flew around her and the others, trapping them in the string and wrappping them up, right in front of the delightful children. The children smiled."Well done Wally, now, to finsih them off,"they all said, stepping in front of the kids, and the weapons started activating.

Wally looked on with a satisfied grin, but as soon as he saw the others, he frowned, then he closed his eyes, grabbed his head, stepped back, and started groaning. Something was happening. He started remembering everything, Numbuhs 1, 2, 3, 5 and the delightful children. He let out one last loud groan, the opened his eyes, which shimmered from blue to its original color, and stayed that color. He looked around, then saw The delightful children about to attack the kids. He growled, lifted his hand, and shot a laser at the children, knocking them off balance and the beams and attacks missing the kids my a mile.

"Get away from my friends you dorks!"he shouted. The children regained their balance, and along with the kids, stared at Wally in disbeliefe. "Wally, what are you doing!"the children shouted."If you dorks think you can make me go against my friends, then you must be crazy! And My names not Wally! Its Numbuh 4!"he shouted. The children growled, and started to activate the weapons. Numbuh 4 grinned, activated the jets, and flew towards the childrens robot, bringing out the saw and slicing the weapons right off. They all fell to the ground and shattered. The children looked at Numbuh 4 charging the laser, then blasting them, causing a huge explosion that sent the children flying back to the mansion.

He landed on the ground, laughing. He walked over to the others and untied them from the rope."N...Numbuh 4? Is it really you?"Numbuh 3 asked. He smiled, then nodded. She smiled widely and started hugging him. The kids smiled, happy knowing their good friend was back. They started patting him on the back and saying how much they missed him. Numbuh 4 smiled, he didn't know he'd be missed this much. They all looked at the huge hole made by the children."Man, this is gonna take some time to fix,"Numbuh 2 said. "Well, lets get to work,"Numbuh 4 said, picking up some discarded wood they could use. For the first time in 2 weeks, they were a team again.

Meanwhile...The delightful children were already back at the mansion, walking around aimlessly. They soon got in front of the room with a mound of rubble where the kids crushed Father, on top of the mound was a hand made cross. "We were so close Father, we almost destroyed the kids next door, but we will get them and avenge you,"they said, hanging their heads in silence for a moment, then walked out. What they failed to notice, was that a part of the mound was moving very slightly. Then, the cross caught on fire, and suddenly, a fiery black fist erupted from the mound, along with a loud, manical laughter that echoed through the room.

Wow, this one was long. wally back to Numbuh 4, and what does the fist mean? Review and you'll find out!