Naruto/Avatar the Last Airbender Worlds Collide Book 1: Water

After the battle against Sasuke in the Valley of the End (in Part 1, NOT Shippuden), Naruto and Sasuke accidentally opened a portal to another world and ended up in different places. After being saved by Katara, a waterbender from the Southern Water Tribe, they soon see an iceberg and save another boy... an air nomad named Aang. Meanwhile Sasuke ends up in the ship of Prince Zuko of the Fire Nation. How will Naruto and Sasuke ever get home? And can Aang make it to the Northern Water Tribe to learn waterbending?