Numbuh 1 and Sector Z were then launched into space towards the moon base.
"Come on, boys, we've got some work to do." Cherry said bravely as she stood between Monty and Benedict.
"We sure do." Monty said.
"Let's do it then!" Benedict sounded ready.
Atticus and Mo came with them and they charged, ready to take on Grandfather once and for all.
"Let's go and take on those Windigos." Vulpix said.
"I can do this, I can do this, I can do this." Teddy said to himself.
The rest of the kids and their pets and Pokemon then went out the mansion to face the Windigos.
"Feels like only yesterday I wore this for the first time..." Akito sighed to himself as he saw his uniform. "And now, not only do I save the future, but I save the past and present now."
The Windigos were ready to fight off the kids while Grandfather handled the adults.
"You don't look a day over 19..." Benedict said to Cherry.
"Funny story about that..." Cherry rolled her eyes.
"Not the time." Atticus said.
"Now... I'm angry..." Cherry bared her fangs.
"You can just tell him later." Atticus said.
"Are you done?" Cherry glanced at him. "We're not gonna stop this guy by boring me to death with speeches."
"Yes, I'm done." Atticus said.
"Come on then!" Cherry moved out with Monty, Benedict, and Mo.
Atticus then came after them so they could take on Grandfather.
The kids who were staying on Earth looked their best and brave as the Windigos seemed to be coming for them.
"Look, my brothers, it's the one that summoned us the first time." One of the Windigos said in an ancient language.
Estelle looked more nervous than the others did since she had done something with these creatures in the past. Her family tried to assure her that it was no big deal anymore, but she felt haunted by the guilt of even thinking of doing it.
"That's right, it's because of her we almost covered all of Equestria in snow." The second Windigo chuckled evilly in ancient language.
"You guys aren't so tough!" Misdreavus floated up and mocked the Windigos. "Let's see you fight like a man!"
"SILENCE, POKEMON!" The Windigo ordered in ancient language.
"Oh, you are really firing me up now!" Misdreavus narrowed her crimson eyes.
One of the Windigos attacked her with its winter powers.
"Misdreavus!" Felicity cried out for her Ghost Pokemon.
The winter attack simply blew the Ghost-Type Pokemon away and into the mansion.
"Misdreavus..." Felicity gasped before looking firm, then glared back to the Windigos. "YOU HURT MY POKEMON!"
"Oh, what're you going to do about it?" the Windigos laughed at her.
"Felicity, remember, we need to sing songs related to Hearth's Warming Eve." Akito said.
"Right... Hearth's Warming Eve..." Felicity told herself.
"We can do it." Misdreavus said.
The kids came together as the Windigos planned their invasion.
"Hearth's Warming Eve is filled with presents~..." Felicity started the best that she could. "Some take you by surprise, A story shared by your good friends, That makes your spirits rise~"
The Windigos began to swirl around the kids their pets and Pokemon to make it hard for them to sing. The kids held each other and screamed.
"Guys, you can do this, you have to fight it!" Dot coached.
"Yeah, come on, we have to keep singing!" Scruffy told them.
"Wait, why not sing the Hearth's Warming Eve carol?!" Teddy suggested and which surprised everyone around him that he thought that himself.
All eyes were on him.
"What?" Teddy asked.
"Oh, Teddy, that's brilliant!" Jenny hugged the Teddy Bear Pokemon.
"It is?" Teddy smiled.
"Yes!" Estelle smiled back. "What better song to send the Windigos away than the very song that started Hearth's Warming Eve?"
This caused the Windigos to become worried and started to go faster to possibly kill them.
"Remember the words?" Vincent asked Jenny, he had taught her one time after celebrating himself for the first time.
"I think so." Jenny looked strong and ready.
"Good, then let's start singing." Vincent said.
"The fire of friendship lives in our hearts, As long as it burns we cannot drift apart~" The kids pets and Pokemon started to sing. "Though quarrels arise, their numbers are few~"
The windigos began to charge.
"Laughter and singing will see us through (will see us through), We are a circle of pony friends, A circle of friends we'll be to the very end~" the kids, pets, and Pokemon sang together.
"As dawn shines on us every morn, The fire of friendship is reborn, And all the friendships we have made, We cherish in every way~" the girls sang.
This caused the Windigos to scream out of pain, but continued on.
'We can do this.' Akito thought to himself.
"Loyalty binds us and makes us strong, Honesty shows that we belong, And kindness shared will unite us through each day~" the boys sang as strongly and bravely as they could.
This caused the Windigo's to scream in pain again.
"The fire of friendship lives in our hearts, As long as it burns, we cannot drift apart~" The Pokemon sang as strong and bravely as they could. "Though quarrels arise, their numbers are few, Laughter and singing will see us through~"
"Guys, it's working." Oliver whispered as he saw the Windigos in pain.
"We have to keep singing." Snow White whispered back.
"We are a circle of pony friends, A circle of friends we'll be to the very end~" The pets sang as strong and bravely as they could. "Though the winter brings all its cold and storm, The glow in our hearts keeps us warm, The friends we know called our family, Will always see us through~"
"We are a circle of pony friends, A circle of friends we'll be to the very end~" the Pokemon sang.
"Though the winter brings all its cold and storm, The glow in our hearts keeps us warm, The friends we now call our family, Will always see us through~" the kids all sang together.
"Loyalty binds us and makes us strong, Honesty shows that we belong, And kindness shared will unite us through each day~" The boys sang as strong and bravely as they could.
"The fire of friendship lives in our hearts, As long as it burns, we cannot drift apart, Though quarrels arise, their numbers are few, Laughter and singing will see us through~" they all sang together.
This caused the Windigos to scream in pain even more.
"Alright, Sis, time for you to take us home." Vincent whispered to Estelle and referred to the end of the song.
Estelle nodded before starting to sing the last of the song. "We are a circle of pony friends, A circle of friends we'll be to the very end~" The brown-haired girl then sang from the bottom of her heart.
The Windigos couldn't seem to take it anymore.
"I think they're surrendering." Dot whispered.
They showed they surrendered as they flew away and back to where they came from. The kids, pets, and Pokemon cheered in victory.
"Now, let's see how the adults are doing against Grandfather." Misdreavus said.
"Oh, I hope everyone will be okay in the end..." Felicity pouted.
"The good side always wins." Akito said.
"Come on, let's go!" Snow White already rushed off to go outside of the mansion to see Grandfather against his fully grown adult sons.
The rest of the pets, and the Pokemon and the kids rushed off with her.
Grandfather was trying to zombify Monty since he was the 'favorite', but Monty refused to give into his father's evil temptations.
"You can do it, Monty!" Atticus cheered.
"You have to." Cherry added in.
"Beat your old man!" Mo helped.
Grandfather didn't quit as he tried to make Monty join his side as his old friends were jeering for him. The former Delightful Children from Down the Lane looked nervous that things might be like how they used to be and they would be forced to go back to the dark side and be worst enemies with the Kids Next Door.
"You don't have to be back on the dark side," Atticus said to the former Delightful Children from Down the Lane. "Even if he is your father, you can choose which side you can be on."
"But what if we change back to what we were after Father delightfulized us?" the blonde girl asked.
"Nope, you won't be able to because of the combined powers the recommissioning module and the magic spell I casted the affects of Benedict's experiment are no longer in affect and where you five will stay this way forever." Atticus smiled.
"Really?" the long-lost operatives of Sector Z asked.
"Really." Atticus smiled.
The long-lost operatives of Sector Z smiled since now they could live their lives again and no longer associate with Father or be the Delightful Children from Down the Lane. Numbuh 1 was still in shock over discovering that the Delightful Children have been the missing members of Sector Z all this time, and where he would fight alongside him.
"Calm down, Numbuh 1." Akito laughed at the bald boy's overreaction.
"This is just a lot to take in," Numbuh 1 replied. "What's next, I'll be the head of the Galactic Kids Next Door?"
"Who knows?" Atticus shrugged.
It was now time for the final battle between Grandfather and his fully grown sons.
"I feel like I've waited for this my whole life, and now it's finally here." Atticus narrowed his eyes.
"And I'm with ya!" Akito beamed to his father.
The kids of Sector Z smiled to that, and soon thought of their own families who they missed very much since 'Father' forced them to become his children. Atticus knew exactly what he would do after this.