The final episode as well as a show sum up. Ozai accidentally causes Aang to enter the mighty Avatar State.

FIGHT! FIGHT! FIGHT! Azula’s mental stability, undermined by the betrayal of her childhood friends at the Boiling Rock, begins to deteriorate as her coronation as Fire lord approaches.

What was the secret to Sailor Moon's success? Join the Nostalgia Critic as he tried to find out!

Dammit show, you will NOT make me cry again! On the island, Aang seeks guidance from his past lives, but they too insist he must take violent action against the Firelord.

Down to the final four! Aang has decided to fight the Fire-lord after Sozin’s Comet passes.

Shakespeare this ain’t. Sokka discovers that the Ember Island Players, a Fire Nation theater group, is debuting a play based upon their adventures.

Payback time! Azula chases Aang from the temple. Zuko confronts Katara about her distrust of him and tries to gain her friendship.

It’s getting hot in here! Sokka and Zuko infiltrate the Fire Nation’s top prison, the Boiling Rock, to find Sokka’s father Hakoda.

What's are the Nostalgia Critic's thoughts on that controversial Season 4 of the Animated Series?

I sense a Double Dragon joke. Zuko tries to teach Aang how to firebend, but has lost his own ability to do so as he is no longer reliant on rage.