Joe and Silvia couldn't believe what they were seeing. They were being given an aerial tour of Paris by its two protectors! They passed by the Eiffel Tower, the Champs-Élysée, the Arc de Triomphe, the Louvre, everything! Silvia was completely awestruck by the views, while Joe was completely awestruck over the fact that he was getting to hang out with two actual superheroes.
As Joe and Silvia were flying in the air, Marinette questioned their superhero forms. "Silvia, you said that Joe needed to figure out a way for your watches to work - what exactly did you mean by that?" Silvia explained, "The thing about the V-Watch is that it can only work when we're being filmed in our movies. I'm not sure whether or not it'll work in your world." Adrien responded, "It couldn't hurt to try. Who knows? It may work." Adrien and Marinette set Joe and Silvia down, with Silvia saying, "I hope this works…", before the two posed and shouted, "Henshin-a-go-go, baby!" To their surprise, they were able to transform into their superhero forms, with no reprecussions. "Awesome! It worked! And I still look as stylish as ever!" exclaimed Joe. Adrien added, "We gotta get a picture of the four of us together. Would you do the honors, m'lady?" "Sure thing, kitty!", Marinette responded, and she pulled out her yo-yo, turning it into a flip-faced camera. The four posed for a picture, and right after Marinette took the picture, a purple figure flew up behind them, knocking them off balance.
"So, this is where you ran off to, my viewtiful rival!" the purple figure exclaimed. The four turned around in shock, with Joe and Silvia being the most surprised. "Alastor!" Joe exclaimed. "What are you doing here?!" demanded Silvia. "I followed you here, through the portal!" Alastor explained. "You can't escape me, Joe! We were destined to fight in the most epic battle!"
Marinette and Adrien got into a fighting pose. "Looks like your epic battle is a 4 on 1 fight!" said Adrien. "Well, that's fine by me!" Alastor responded. He began to take flight, shooting lightning all over the place. The four of them scattered in different directions, dodging the lightning strikes. Joe threw Voomerangs and Shocking Pink Bombs at him, with Silvia shooting her pistol as well. Despite shooting only once, both Adrien and Marinette noticed that they saw Alastor getting hit three times. "That's her Replay VFX," Adrien explained. "It lets her hit enemies up to three times with one attack, making it all the more stronger." Hearing this, in her other gun, she shot more times, but the bullets seemed to home in on Alastor. "I don't just use the Replay, Adrien," Silvia said, smirking.
While the two had Alastor distracted, Adrien came up from behind and knocked him out of the air with his staff, knocking Alastor to the ground; Joe and Silvia leaped up in the air and shouted, "Red Hot Kick!" and "Cool Blue Kick!", divekicking Alastor. Alastor looked up with slight annoyance. He flew back up, this time out of reach, before shooting off multiple swords. While Marinette was fighting off the swords with her yo-yo, she looked over to see Joe fighting them off barehandedly. She looked a little closer, and saw what he was doing: to her surprise, it seemed as though he was slowing down time, and then speeding it up, like a superpower.
"Is that one of your special abilities, Joe?" Marinette asked, genuinely curious about her new friends' abilities. "Two, actually. The first one's the Slow VFX. It lets me slow down things around me so I can dodge attacks in a truly viewtiful fashion, like The Matrix," Joe explained. "It also helps me power up attacks, and fight special quick-moving enemies. If I want time to move faster, and deal out tons of hits in a short time, I use my Mach Speed VFX." "You know, I've always wanted to see those powers in action," Adrien said. "Hey Joe, you wanna see my superpower?" he asked. Alastor, somewhat curious too, swooped down to attack Adrien. Adrien shouted "Cataclysm!" and charged up bad luck energy in his hand, before touching the nearby building that he lured Alastor under. The building completely collapsed, leaving Alastor under all the rubble. However, that wasn't quite enough to bring him down, as Alastor still had a bit of life left in him. "Well, I guess I'm the last one for show and tell," Marinette said, smiling. "Lucky Charm!" She threw her yo-yo into the air, using her good luck powers to summon a metallic rod. "A rod? What good will this do?" Marinette said in confusion. As the four were crowded around Marinette and her new item, Alastor found the perfect opportunity to strike, and fired a lightning bolt at the group. Miraculously, it seemed to only hit Marinette. As Adrien, Joe, and Silvia looked at her to make sure she was okay, her eyes lightened up. "I've got an idea," she said.
Alastor could not hear what was happening, as the four were huddled around and whispering. He prepared another lightning strike, and at the same moment he launched it, Marinette threw the rod towards Alastor, yelling, "Catch!" Alastor caught the rod in confusion, and failed to realize that the metallic properties of the rod caused the lightning to go right back at him and knock him down, which was all they needed to finish him off. As the four celebrated, Marinette took the rod from Alastor, and threw it up in the air, yelling, "Miraculous Ladybug!" The building Adrien had destroyed magically fixed itself, with Joe and Silvia being both equally surprised.
"This…isn't over…" Alastor said, through his very exhausted state. He tried to get up to continue to fight, before Silvia stopped him. "In case you haven't noticed, we're now in a different dimension. It'd be a good idea if we didn't leave it in a mess once we leave." "There's…no leaving…the portal I followed you in…it closed on my way out…" Joe, Silvia, Marinette, and Adrien all simultaneously gasped in shock. Silvia, however, continued, "Well, now our main focus is to get back home. And we can't constantly fight you to fulfill your wish for an "ultimate battle". So why don't you just go somewhere else for a while and leave us be while we figure out a way not to be stuck here for the rest of our lives." Alastor looked to Joe, and said, "Don't let her do this, man…you and I were meant to be arch-rivals!" "…She's kinda right, we do need to figure out a way to get home," Joe said. Alastor, now confused and upset, quickly flew off. Marinette quickly brightened up the mood by saying, "If you guys need a way to get back home, Adrien and I know a couple of guys who might be able to help." "But first, we'll all need to change back," added Adrien. "Remember, no one else knows that we're Ladybug and Cat Noir." The four, one by one, changed back into their regular attire.