S03E06: The Avatar and the Firelord
The tale of Avatar Roku and Fire Lord Sozin is revealed to Aang and Zuko by different sources. Both learn about themselves and are shown the origins of the war.
Previous Episode 
Season 1
The Boy in the Iceberg
S1E1 / 21 Feb 2005
The Avatar Returns
S1E2 / 21 Feb 2005
The Southern Air Temple
S1E3 / 25 Feb 2005
The Warriors of Kyoshi
S1E4 / 04 Mar 2005
The King of Omashu
S1E5 / 18 Mar 2005
Imprisoned
S1E6 / 25 Mar 2005
The Spirit World: Winter Solstice (1)
S1E7 / 08 Apr 2005
Avatar Roku: Winter Solstice (2)
S1E8 / 15 Apr 2005
The Waterbending Scroll
S1E9 / 29 Apr 2005
Jet
S1E10 / 06 May 2005
The Great Divide
S1E11 / 20 May 2005
The Storm
S1E12 / 03 Jun 2005
The Blue Spirit
S1E13 / 17 Jun 2005
The Fortuneteller
S1E14 / 23 Sep 2005
Bato of the Water Tribe
S1E15 / 07 Oct 2005
The Deserter
S1E16 / 21 Oct 2005
The Northern Air Temple
S1E17 / 04 Nov 2005
The Waterbending Master
S1E18 / 18 Nov 2005
The Siege of the North (1)
S1E19 / 02 Dec 2005
The Siege of the North (2)
S1E20 / 02 Dec 2005
Season 2
The Avatar State
S2E1 / 17 Mar 2006
The Cave of Two Lovers
S2E2 / 24 Mar 2006
Return to Omashu
S2E3 / 07 Apr 2006
The Swamp
S2E4 / 14 Apr 2006
Avatar Day
S2E5 / 28 Apr 2006
The Blind Bandit
S2E6 / 05 May 2006
Zuko Alone
S2E7 / 12 May 2006
The Chase
S2E8 / 26 May 2006
Bitter Work
S2E9 / 02 Jun 2006
The Library
S2E10 / 14 Jul 2006
The Desert
S2E11 / 14 Jul 2006
The Serpent's Pass
S2E12 / 15 Sep 2006
The Drill
S2E13 / 15 Sep 2006
City of Walls and Secrets
S2E14 / 22 Sep 2006
The Tales of Ba Sing Se
S2E15 / 29 Sep 2006
Appa's Lost Days
S2E16 / 13 Oct 2006
Lake Laogai
S2E17 / 03 Nov 2006
The Earth King
S2E18 / 17 Nov 2006
The Guru
S2E19 / 01 Dec 2006
The Crossroads of Destiny
S2E20 / 01 Dec 2006
Season 3
The Awakening
S3E1 / 21 Sep 2007
The Headband
S3E2 / 28 Sep 2007
The Painted Lady
S3E3 / 05 Oct 2007
Sokka's Master
S3E4 / 12 Oct 2007
The Beach
S3E5 / 19 Oct 2007
The Avatar and the Firelord
S3E6 / 26 Oct 2007
The Runaway
S3E7 / 02 Nov 2007
The Puppetmaster
S3E8 / 09 Nov 2007
Nightmares and Daydreams
S3E9 / 16 Nov 2007
The Day of Black Sun: The Invasion (1)
S3E10 / 30 Nov 2007
The Day of Black Sun: The Eclipse (2)
S3E11 / 30 Nov 2007
The Western Air Temple
S3E12 / 14 Jul 2008
The Firebending Masters
S3E13 / 15 Jul 2008
The Boiling Rock (1)
S3E14 / 16 Jul 2008
The Boiling Rock (2)
S3E15 / 16 Jul 2008
The Southern Raiders
S3E16 / 17 Jul 2008
The Ember Island Players
S3E17 / 18 Jul 2008
Sozin's Comet: The Phoenix King (1)
S3E18 / 19 Jul 2008
Sozin's Comet: The Old Masters (2)
S3E19 / 19 Jul 2008
Sozin's Comet: Into the Inferno (3)
S3E20 / 19 Jul 2008
Sozin's Comet: Avatar Aang (4)
S3E21 / 19 Jul 2008
Zach Tyler Eisen
Aang (voice)
Mae Whitman
Katara (voice)
Jack De Sena
Sokka (voice)
Dante Basco
Zuko (voice)
Michaela Jill Murphy
Toph Beifong (voice)
