Avatar: The Last Airbender, The Serpent's Pass

After leaving the North Pole, Aang and the group travel to an Earth Kingdom military base to receive an escort to Omashu, so Aang can learn earthbending from King Bumi.

While on the way to Omashu, Aang and the crew meet a group of traveling bards who take them through a vast tunnel known as the Cave of Two Lovers.

Aang and the crew are shocked to find Omashu captured by the Fire Nation. They sneak in and are caught by Fire Nation soldiers, but released when pox marks on Sokka create the illusion of illness.

While flying over a swamp, Aang, Katara, Sokka, and Appa become separated by a tornado. After landing in the swamp, Appa and Momo are captured.

After being attacked by a band of Fire Nation soldiers, the gang stumbles upon a town celebrating Avatar Day.

Still seeking an earthbending master, Aang and the crew stumble upon an earthbending tournament.

After leaving his uncle, Zuko continues his solo journey. He meets a boy in an Earth Kingdom town who brings him home to dinner.

Aang, Katara, Sokka, and Toph are chased by an unknown machine, which results in a lack of sleep. After Toph and Katara argue, Toph leaves and runs into Iroh, who is tracking down Zuko.

Aang tries to learn earthbending from Toph, despite interference from his previous airbending training. Sokka becomes stuck in a hole after trying to hunt an animal.

A professor tells the gang about a Spirit Library full of information, hidden in the Si Wong Desert.

Since Appa was captured, the gang walks across the desert to tell the Earth King about the Fire Nation's secret. Aang grows angry and sad over Appa's capture.

After leaving the desert, the group, accompanied by Suki, attempts to lead a couple who are expecting a baby through the dangerous Serpent's Pass.

Aang discovers a secret Fire Nation super weapon heading straight for Ba Sing Se and must stop it before it destroys the great wall which protects the city from invasion.

Team Avatar finally arrives in the Earth Kingdom's capital, Ba Sing Se, eager to tell the Earth King about the opportunity the coming eclipse, only to be stopped by mysterious forces within the city.

During their stay in Ba Sing Se Katara and Toph have a girls' day out; Iroh helps out people in town, preparing for an emotional day; Aang helps a zookeeper build a new zoo.

After his abduction in the Si Wong Desert, Appa is eventually sold to a Fire Nation circus, where he is forced to perform.

The gang continues looking for Appa, with Long Feng trying to throw them off by sending Jet to make them leave the city.

The gang breaks into the Earth King's palace to talk to him, Long Feng, and the Dai Li about the war.

Aang starts to learn control of the Avatar State from Guru Pathik at the Eastern Air Temple.

When Aang has a vision that Katara is in danger, Aang, Sokka, and Toph all rush back to Ba Sing Se to save her.