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After Zuko finds himself unable to firebend effectively, he and Aang go to find the origin of firebending in the ruins of an ancient civilization of firebenders known as The Sun Warriors.
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Seeking redemption and a chance to be on Team Avatar, Zuko follows Aang and his friends to the Western Air Temple. There, he desperately tries to prove to them that he’s changed for the better.
As the invasion force fights their way to the Fire Nation capital, Sokka and Toph help Aang to find the Fire Lord in time for the eclipse but a surprise awaits them.
The invasion begins on the day of the eclipse, and Sokka’s invasion plan carries out.
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The group arrives at the rendezvous point for the invasion four days ahead of schedule but Aang begins to get nervous about confronting the Fire Lord, leading him to have nightmares and then stop sleeping entirely. The group tries to help him relax in their own ways.
Katara expresses her disapproval when Toph discovers a way to make quick cash, resulting in a rift that leaves the group in a disastrous situation.
Aang and Zuko are taken on a parallel adventure that gives them insight into their ancestors’ pasts. We learn that Avatar Roku and Fire Lord Sozin were best friends as children, but as they grew older, their opinions differed.
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18 October, 2007
Zuko, Azula, Mai and Ty Lee go on vacation to Ember Island, where they learn much about themselves and one another. Meanwhile, Aang and the rest are being chased by an assassin that Zuko hires, who firebends from his mind.
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In order to contribute better to the group and not feel left out, Sokka looks for a sword master to train him. Meanwhile, Iroh devises a plan to escape prison and starts exercising in secret while appearing feeble in front of the guards.
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Aang and the gang are travelling towards the Fire Lord as they come across a village that is starving. That night, a mysterious spirit comes to aid the village. As Appa falls ill, the gang is forced to remain in town for Appa to heal.