Never

The all day full moon

The team were training to fight the Chief and the prince. The Avatar was water bending a lot of water, still training then he dropped it all on him. "Great, I'm soaked now." he said. "Alright who wants ice drinks?" the fire bender said, heating the bottom of them. "Me!" he said, running. "You're not gonna stop him?" the pink girl asked. "Nah, he deserves a rest." the water bender said. "Well, the all day full moon is just round the corner so we better go now and fight the Southern Water Tribe." the fire bender said. "About that, we were planning on fighting them afterwards." the earth bender said. "YOU WHAT?! There will be no world afterwards. This is bad, very bad." the fire bender then responded. "If I know my tribe, and my tribe I do know. They will destroy the Earth Kingdom, and destroy it they will." the princess says. "UGH! THIS FEELS LIKE A MASSIVE SCAR IN THE BACK...literally." her boyfriend says. "I have a plan." the pink girl adds. 

"What is it?" the ex Fire Prince says, "Aang will face the Chief. Me, Toph and Azula will go to the airships and Zuko will be with Katara facing her brother." she says. "Alright but no funny business." the Avatar says. "Of course not." the water bender says, then they have a brief kiss. "Alright, we take Appa to go to the South Pole and you guys take this polar bear-dog that we found yesterday." she says. They then all get going, scared but also very vastly determined to win this war and finish it. On Appa the all day full moon was coming, "You ready for extreme power?" the Fire Nation ex prince asked, "You bet I am. And if I win, the first thing I wanna do is make you and your family royals again." the princess says. "Thank you, I appreciate it." he says. They arrive nearby the palace and walk around, sneakily. They see the Southern prince getting ready for his would've been coronation. "Full of yourself, much." his sister whispered.

The prince was putting his hair in a ponytail (like zukos in s1) and he then cut the ponytail off. Then an image in his mind of his mom appeared. "Such a shame you had nice hair." she said. "What do you want?" he said, annoyed. "I couldn't miss my son's coronation. Also I know how you used your sister." she replied. "Well what choice do I have? Trust is for fools, fear is the only way. Even you feared me." he said, angry. "No Sokka, I love you." she said. "UGH!" he chucked a brush at the mirror, shattering it. He then got going to his coronation, the two others walked behind him. "All hail Chief Sokka!" someone said, about to put the crown on his almost bald head. "You're not being in charge brother. I will be." his sister said, hands on her hips. The two siblings positioned themselves as they were about to fight a water bending duel. "I'm sorry it has to end this way, sister." he said. "No you're not." she said. The two blasted water after water.

The Avatar was on a ledge of ice, the Water Tribe Chief was coming his way. "Well, well, well. If it isn't Avatar Aang, the boy in the volcano, the element king, etcetera." he said. "Listen, we don't have to fight. You could give up here." the 13 year old said. "Well, what's the fun in that?" the much older man said. Then he started blasting ice at him, which was melted by the Avatar's fire. The two enemies fought each other well, then the boy fell almost to his doom and then flew using air bending. "You will not win, you monster." he shouted. "Monster? Am I really the monster when you're attacking me?" the grown man asked. Then the boy went into the Avatar State, gathering all the elements with him. He may be just 13 but he is much more powerful and it shows. Then a massive air ship passed by and there was a figure covered in metal, one steering and another chi blocking fire benders. Then it went a tad lower and banged the Water Chief in the head. "Hey Aang. Bye Aang." the person steering said, it was Azula. He just smiled.