It was days later after the fall of Ba Sing Se that our heroes reunited in a small oasis town in the desert, and after hearing Zaheer's ultimatum, Korra had to move quickly along with the others to the mountains.
"Alright, so we know that the Red Lotus has the Airbenders, and that he wants Korra so that he can let them go. But we have other problems." Ty said. "Titanmon is lumbering his way over to Centurion's exact spot, and he's gotta have that whole army David's team saw underground with him."
"The worst part is, without Merukimon, we can't make the Sealing Formation to lock em back up." AJ said. "And we still don't have a clue where the hell he is."
"Actually...that isn't true." Urbosa said entering with Daruk and Mipha by her side. "He's in the spirit world."
"Yes...we learned about him recently after what has been happening." Mipha said.
"Then why hasn't anyone talked to him yet?" Hope asked.
"There has been someone talking to him. And that person's been Milla." Daruk said.
"Jude, I think we owe your friend another one." Connor said.
"Indeed, so we will be able have all of the Olympos XII assembled then." Spade said.
"Yes...it shouldn't be much longer before they all are assembled here on this world." Gaia said possessing Natalie's body.
"Corona...if the time comes when we have to fight, we may have to become Gracenovamon." Tsuki said.
"Keep the spoilers to yourselves. We don't want more heartbreak when Ace gets back." Tsumugi said.
"She's right. He already has to face the fact that not only are you two leaving, but we couldn't stop Titanmon's resurrection." David said.
"And that will be on you." Corona said.
"You think I wanted that to happen?" David asked.
"Hey!" Hope said. "That's enough! What happened at Ba Sing Se happened. But there's still time to stop Titanmon and his army, and Centurion. Please… don't argue amongst gods and men."
"Very well." Tsuki said.
"Thanks, Hope. I'm not sure how I would've handled that if you hadn't stepped in." David said.
"No problem, buddy. The last thing I want is angry gods ending our lives." Hope said. "Though I can say that's happened to us before."
"Hope… you really are something." Korra said. "But the only way this can lead to a good ending is if I honor Zaheer's Ultimatum."
"Korra, you know I didn't want this. None of us did." Hope said. "But if this is the only way that leads to stopping the titans… I gotta trust you."
"No matter what happens to me during this final stretch…. If I get injured or something…" Korra said.
"I know. You're always gonna be a member of our team. Good luck, Korra." Hope said as Korra left to prepare as Nu floated to his side. "Is it still hard to understand all this, Nu?"
"Nu only awakened to emotion when Pandora helped. I still don't understand much, but...I seem to grasp the emotion of one thing… the bond between teammates." Nu said.
"It's more than that, Nu. Jexi, myself and David… even Ace…. we don't see our members as teams. We're family." Hope said. "And family… well that's something a lot of us put a lot of emotion into."
"Nu… understands a little…" Nu said. "But enough to see more than just love for Ragna."
"You'll get better at it." Hope smiled.
As the airships headed to the Air Temple Mountains, the groups prepared.
Connor loaded up his weaponry as he put on his coat and hat, as team revival prepared as well.
Ty brushed his scar as he pulled his gloves alongside his team, checking their weapons.
Spade looked up to the sky along with Simon, hoping their brother would return soon to help as they readied their swords along with the rest of Spirit Force readying their gear and magic.
Zexi was getting some practice in on a dummy as the others got ready.
Spectra looked down at the Black Stone as Volt looked out to the distance with Hoopa.
Hope looked at himself in the mirror and nodded as Lunala stood beside him. Whilst behind him. Luna was looking at a picture of her family as Croagunk was ready to fight. As for Theo, he looked at his Keyblade before raising it to the sky.
David drew his sword before making some quick slashes and held the blade above his hand like a samurai sword.
Jexi in the meanwhile sat down and meditated in a small spot as he steeled himself.
Meanwhile, Titanmon was lumbering through the mountainside, crushing anything in his way. Behind him was an army of revived titans, grunts and those having their powers from gods themselves, all marching up the mountains in unison.
Gaia continued to look out while having Natalie's body. "Seems we don't have much longer now." Gaia said. "Hopefully with what I accomplish...I can make up for my deeds against the worlds."
It wasn't long before the heroes arrived at the Air Temple mountains. Korra went to Lahima's peak secretly backed by Chief Tonraq, Mipha, Urbosa, and Chief Beifong as well as Suyin and a squad of her Metalbenders. Meanwhile, Mako, Bolin and Asami went to the Northern Air Temple to recover the Airbenders.
"So where does that leave us? Where should David meet Centurion, and where do we help set up the Olympos XII Sealing Formation?" AJ asked.
"You can't help with the formation." Gaia said. "It shouldn't be too long before the remaining ones arrive on this world. But until then, the titans need to be held back."
"That's right, if Titanmon, Centurion or anyone of his army gets to you before the other XII arrive, it's game over." Ty said. "We'll hold off as much as we can."
"Yes… As such, I will remain on this ship. Most will fight Titanmon and the Titans. Ishihara alone will go for Centurion." Gaia said.
"Ball's in your court. You ready?" Zelos asked.
"Ready as I'll ever be." David said.
"They are close." Medusa said. "Ready yourselves, everyone."
"They aren't the only ones." AJ said seeing a figure standing on a mountain peak up ahead. It was Centurion, standing there and looking out.
"Go get em...Titan Slayer." Ty said tossing Masakado to David.
"Thanks, Ty. And...if somehow, I don't make it out alive…" David started.
"You'll make it, you've come out of worse scrapes before." Spade said.
"You just let us worry about that." Sectonia said.
"Thank you, everyone." David said with a smile and a nod. "Heading out!"
David then ran to Centurion's location as the others prepared for Titanmon's arrival.
Meanwhile, Korra had arrived at Lahima's peak where Zaheer and P'Li awaited.
"I'm here, and Mako arrived at the temple. Tell Ghazan to let the airbenders go!" Korra called.
"Not until you turn yourself over, this isn't a negotiation." Zaheer said.
"Fine." Korra said as she dropped her radio and was cuffed.
"Don't bother Metalbending out of these. They're platinum." P'Li said.
As Korra began to walk to the airship with the two, Mako suddenly radioed over.
"Korra! It's a trick, the airbenders aren't here! Don't turn yourself over!" Mako warned as Korra heard.
"We had a deal!" Korra said angrily before she fought back even while cuffed. Suyin and her squad quickly ascended to aid Korra as their battle began.
Far off at another peak. David walked up and finally confronted Centurion.
"So it's only you. I was expecting more of you." Centurion said.
"The others are too busy dealing with Titanmon down below. I would've stopped his resurrection if I could." David said looking to Masakado.
"No you wouldn't have. Titanmon is not a god like I am." Centurion said. "He is a true titan who needs no powers of gods."
"And that's exactly why you need to think about this. Do you have any idea what kind of destruction a monster like that would cause?" David asked. "Forget all of the mortals, there won't be anything left of the multiverse to live in."
"This is the only way for there to be balance within the universes." Centurion said. "I will not allow humanity to cause destruction. No more."
"Well, it's true that the majority of mortals are exactly as you say…" David said as he got into stance. "But some of us don't intend to live that way. If we were fine with the way you were doing things, we wouldn't be here."
"I know...so that is why...I have to end all of you here and now." Centurion said as thunder struck his arm as it became clad in armor with claws sticking out. "Thunder Arts! Raijin!"
(Cue: Akuma vs Ryu- Street Fighter IV)
"So, that's how we're starting out." David said as he unleashed his Ice Reaper Claw.
Centurion then rushed at David as the two clashed claw against claw.
"I gotta say...you move pretty fast." David said.
"I am he who embodies lightning...there is no reason for me to act slow." Centurion said.
"Well put." David said. "Course this is making it hard for me to land a hit." he thought.
"Raiko!" Centurion shouted as lightning surged from his claw weapon.
"Zone Speed." David said as time starts to slow down, letting him deal some hits before time goes back to normal.
"Argh!" Centurion said suffering the blows. "So...you have a power that slows time. Interesting...but it will not be that effective. Sun Arts! Apollo!" he shouted as a sword of fire appeared in his free arm.
"What's the story there? You killed your comrade so that you can have his power for yourself?" David asked. "Still, a well played-out theme. I happen to have a soft spot for the classics."
"You may not know, but titans are able to absorb one another in order to become stronger. This power of the sun is a gift from Phos. He tried to exact petty revenge against the weak Nephilim. I'm someone who cares not to vengeance. All I care for is balance." Centurion said.
"I'm with you on that, and I understand that you meant well, but your methods are just too extreme." David said. "It's a shame. In another life, you could've been a hero."
"Except when this is over...I will be considered a hero." Centurion said holding his sword tight before sensing something. "What is this? The Olympos XII? Drawing closer to this world. Seems your comrades were able to find them after all. I greatly underestimated you. When all of this is over...I see to it Grimoire resurrects you as my second in command."
"Yeah… I'm afraid I'm gonna have to pass on that." David said.
"Then you've just made this more painful then it has to be." Centurion said as he rushed at David with his sword out far.
David retracts his claw and jumps up as he draws Masakado. "Everyone! Lend me your strength!" he said as orbs of light begun to circulate inside Masakado as it glowed before the two clashed. "Your ambitions are too dangerous. My apologies, but I cannot allow you to live!" he said as he blocks Centurion's attack before he stabs Centurion in the chest. He then proceeded to swing his sword upward.
"Is this...where it ends?" Centurion thought as he fell backwards as he descended down to the misty depths below the mountains.
(music end)
"Centurion has been defeated. It's over… No, not yet. There's still one more thing that needs to be done." David said.
Meanwhile with Korra, she was unfortunately captured and brought to a cave system where the Airbenders were.
"You… you killed my father!" Korra said as she blasted fire out of her mouth.
"I feel your pain. For I too have lost someone this day." Zaheer said. "But your pain will soon be over. Bring the poison."
Two red lotus members came with a bowl full of a silver liquid. Korra became worried. For this wasn't just any poison.
It was a bowl filled with Mercury, a poisonous liquid metal that is deadly to the touch. Korra looked on in fear as the poison was being bended out of the bowl.