Proloug
"I SEE THE AVATARS ANIMAL! I SEE THEM, I SEE THEM!" Zuko's watcher screemed. Zuko yelled at the men to hurry them up, so they could reach the island before Azula got there.
Finally, pulling up on shore he spotted ang fighting Azula. He quickly ran to the scene and started battling Azula and Aang. He noticed his sister tiring out little by little. The Avatar was also tiring. Finally with one last burst of energy, Azula shot her famous blue lightning at her brother, exept this time it had some purple in it. Right before it hit Zuko, Uncle Iroh jumped in the way and reflected the lightning. But he accidentally reflected it on Katara. Right then both girls collapsed. Then there was this huge blast of light with the heat of a dying appocolypse. When everyone could see again, Zuko ordered his guards to throw Azula in a room on his ship, and to guard it. Then when he turned back around to finish Aang off, and realized they had gotten away.
Zuko cursed under his breath as he and his crew retreated back to their ship. They set sail immediately. Zuko went to go see Azula to make sure she wasn't going to escape. When he was satisfied he marched back up the stairs to rejoin with his crew and uncle. When he got there one of his crew members came to him and said "Prince Zuko, we have caught sight of the Bison and are heading in that direction" Zuko nodded and left to retire for the night.