• Two teenage siblings (Sokka and Katara) living in the South Pole discover a very strange boy (Aang), along with his pet flying bison Appa, in an iceberg. But can they trust him when he accidentally draws the war to their village's doorstep?
  • Katara and Sokka discover that Aang is the long-lost Avatar and must rescue him when a Firebending prince named Zuko kidnaps him.
  • Aang is excited about going home (the Southern Airtemple) for the first time in one hundred years, but he is shocked to find out that the temple is deserted. Aang tells Sokka and Katara about his childhood as they explore the temple, but they soon discover something that Aang never expected. Meanwhile, Prince Zuko must make repairs to his ship and the only way he can do it is to dock his ship at his rival's naval base.
  • The gang arrives at Kyoshi Island and are captured by some Kyoshi warriors. When Aang reveals that he is the avatar, news quickly spreads out and suddenly reaches to Prince Zuko who then goes to Kyoshi Island to capture him.
  • Aang's abilities as an airbender are challenged by a king.
  • In a nearby Earth Village, the gang meets a teenage earthbender named Haru. This village lives in fear of the Fire Nation, for soldiers there capture any earthbenders they can find.
  • Aang and friends visit a village being terrorized by an angry spirit. Iroh is captured by Earth Kingdom soldiers.
  • To contact the spirit of the previous Avatar, Aang must reach a temple in the Fire Nation before the sun sets on the following day. There he will learn what he must do to restore balance to the world. Zuko must defy his banishment to follow Aang.
  • Jealous of the ease with which Aang is learning waterbending, Katara goes to extreme lengths to get a scroll that teaches advanced techniques. Zuko is frustrated when Uncle Iroh insists they put to land to get a new White Lotus tile for his Pai Sho game.
  • Aang, Katara, and Sokka have their friendship tested by a charismatic Rebel Leader who is fighting against the Fire Nation.
  • Aang is tested as the Avatar when he must help two feuding clans cross a dangerous canyon peacefully.
  • Aang relives the events after finding out that he is the Avatar 100 years ago and tells them to Katara, while Iroh tells the story of Zuko's scar and banishment to the crew.
  • When Aang is captured by the Fire Nation, his only hope is a mysterious masked figure.
  • The Gaang visits a village where a fortuneteller lives who is said to never be wrong. Aang tries to show Katara how he feels about her.
  • Sokka and Katara meet a friend of their father who offers to take them to join the Water Tribe's navy. Aang fears his friends will choose seeing their father again over staying with him.
  • When he meets an outcast from the Fire Nation, Aang is impatient to skip ahead in his training.
  • Aang is upset when he finds an old Air Temple has been desecrated by an old inventor and his son.
  • The heroes finally arrive at the North Pole. But for Katara, the trip may have been in vain, as Master Pakku refuses to teach girls waterbending.
  • While Katara herself becomes a great waterbending master, Commander Zhao plans a siege on the Northern Water Tribe. Meanwhile, Sokka's on a mission to stop this siege while Aang tries to buy them some time.
  • The Fire Nation is attacking the North Pole and Sokka, Katara, and Yue are looking for Aang. Zuko has Aang, but Aang is in the spirit world, where he meets Avatar Roku. Zuko and Aang are trapped in a cave during a storm, where Zuko shares some inner turmoil with Aang, who is in the Spirit World. At the water tribe, the firebenders are winning. Iroh attacks Zhao when Zhao reveals that he wants to kill the spirits of the moon and the ocean. In the Spirit World, Aang meets Koh the Face Stealer, who tells him that someone is planning on killing the spirits and he needs to…
  • Aang and friends arrive in the Earth Kingdom to begin his earthbending training, but a local general convinces Aang that all he needs to do is learn to control his Avatar state. Azula, Zuko's sister, arrives to escort her brother and uncle back to the Fire Nation.
  • 'The Cave of Two Lovers' is where we first see definite signs of the true nature of the growing love relationship between the main characters Avatar Aang and the water bending master Katara. Sokka is bombarded by a group of free-thinking hippie musical nomads during most of the episode as well making for many humorous moments of head-smacking good fun. Uncle Iroh and Prince Zuko learn about life on the run from the Fire Nation and how not to brew ‘White Jade Lily’ as a tea ever again. The history of how the Earth city of Omashu came into being is provided as well as a…
  • Finding the city of Aang's old friend, King Bumi, captured by the Fire Nation, the heroes hatch a plan to rescue Aang's earthbending teacher. Azula gathers two old friends to help her hunt the Avatar.
  • Aang hears a swamp calling to him. In the swamp, Aang and the gang find out that this is not any natural swamp.
  • Sokka and Katara have to solve a centuries-old crime when Aang is imprisoned for a murder allegedly committed by one of his past incarnations.
  • Still searching for an earthbending teacher, Aang and his friends stumble across a small earth village. When they hear about an underground earthbending tournament, they decide to go to it. Aang finds a teacher that fits the description of King Bumi. Her name is Toph Beifong, a blind, 12 year old girl who is tougher than she looks. When they meet, Toph is at first reluctant, because her parents don't know how good of a bender she is. After her parents discover her secret life, she decides that she wants to join the Avatar gang to help him master earthbending.
  • As Zuko tries to make it by in exile without his uncle, he remembers how his father became Firelord and what happened to his mother.
  • Everytime the land, Azula and her warriors find Aang, Katara, Sokka, and Toph. Toph refuses to help set up camp claiming she carries her own weight and no one else's. After a fight between Aang, Katara and Toph, Toph storms off angrily. Aang lays a decoy trail for Azula and Sokka, Katara, Appa, and MoMo, flee the other direction. Aang waits for Azula and is fighting her when Zuko and Iaro arrive. Soon, Katara, and Sokka come to the fight too. Just as all hope of winning is lost, Toph arrives and together, the six attack Azula. Knowing she is beat, Azula shots Iaro …
  • Aang begins to learn earthbending from Toph; Uncle Iro resumes teaching Zuko firebending to better prepare him for facing Azula, and reveals a new technique he learned from watching waterbenders.
  • When he learns that there is a lost Library with all the knowledge in the world, Sokka convinces the others to seek it out in hopes of finding a weakness of the Fire Nation. Iroh and Zuko make contact with a secret organization.
  • Aang, Katara, Sokka and Toph escape the library to face the desert without the benefit of Aang's flying bison, Appa. The group knows they must get the information they obtained from the library about the upcoming solar eclipse to earth kingdom capital of Bah Sing Se as it could very well make the difference in the ongoing war with the Fire Nation. Aang, who has always felt somewhat isolated by the realization that he is indeed the last air bender, considers Appa and Momo his only connections to his previous 100-year ago world. When Appa is stolen by sand benders Aang …
  • After getting tickets for the ferry headed to Ba Sing Se, the gang meets an old friend. They skip the ferry ride to help some refugees, one of which is going to have a baby, get to Ba Sing Se. They must lead the refugees through the Serpent's Pass, a dangerous mountain-side path surrounded by water.
  • After arriving at the great wall of Ba Sing Se. Aang and the gang discover that the fire nation has constructed a great drilling machine to penetrate the wall. The drill is also followed by army of fire nation troops. Also Zuko and Iro are having trouble hiding the fact that they are both fire benders.
  • After getting a house to stay in, Aang and company are given a tour of Ba Sing Se. As they try to get into tell the Earth King the news, they find that nothing is quite what is seems. Jet is the city too, and he is positive that Iroh and Zuko are Firebenders.
  • A series of short stories covering some of the time spent by Katara, Toph, Iroh, Sokka, Aang, Zuko and Momo as they live in Ba Sing Se.
  • In this special episode, we go back in time to the moment Appa was stolen, will find out where he has gone and who he has met along the way and more importantly where he is now!
  • The Avatar gang encounters Jet in Ba Sing Se and he helps them to discover the location of Appa. But they will end up discovering something else, a secret of the city.
  • The kids battle Long Feng the Dai Li when they attempt to show the Earth King the vast conspiracy taking place in his city. Zuko becomes seriously ill and has feverish dreams as he faces a spiritual crisis.
  • Aang receives guidance from Guru Pathik at the Eastern Air Temple; Sokka is reunited with his long-lost father; Princess Azula has something diabolical in store for her enemies; Uncle and Zuko run their own tea shop.