Firebender offers the entire season one collection of Avatar: the Last Airbender episodes for free. These videos are hosted at Nick.com and have been embedded onto Firebender’s pages for your enjoyment.
Season 3 Episode 1: “The Awakening”
Season 3 Episode 2: “The Headband”
Season 3 Episode 3: “The Painted Lady”
Season 3 Episode 4: “Sokka’s Master”
Season 3 Episode 5: “The Beach”
Season 3 Episode 6: “The Avatar and the Fire Lord”
Season 3 Episode 7: “The Runaway”
Season 3 Episode 8: “The Puppetmaster”
Season 3 Episode 9: “Nightmares and Daydreams”
Season 3 Episode 10: “The Day of Black Sun, Part 1: The Invasion”
Season 3 Episode 11: “The Day of Black Sun, Part 2: The Eclipse”
Season 3 Episode 12: “The Western Air Temple”
Season 3 Episode 13: “The Firebending Masters”
Season 3 Episode 14: “The Boiling Rock: Part I”
Season 3 Episode 15: “The Boiling Rock: Part II”
Season 3 Episode 16: “The Southern Raiders”
Season 3 Episode 17: “The Ember Island Players”
Season 3 Episode 18: “Sozin’s Comet: The Phoenix King”
Season 3 Episode 19: “Sozin’s Comet: The Old Masters“
Season 3 Episode 20: “Sozin’s Comet: Into the Inferno“
Season 3 Episode 21: “Sozin’s Comet: Avatar Aang“