Avatar: The Last Airbender: 1x17
Chapter Seventeen: The Northern Air Temple
When Aang and his friends hear rumors about surviving airbenders, they decide to stop by the Northern Air Temple on their way to the North Pole to see for themselves. What they find is a bunch of people who are not airbenders, but have mastered the art of gliding; though this upsets Aang because they have been defacing the temple. However, there was one part of the temple where nobody has been able to enter, and what Aang and his friends discover inside spells oncoming conflict.
1 - 1Chapter One: The Boy in the Iceberg Feb. 21, 2005
1 - 2Chapter Two: The Avatar Returns Feb. 21, 2005
1 - 3Chapter Three: The Southern Air Temple Feb. 25, 2005
1 - 4Chapter Four: The Warriors of Kyoshi Mar. 04, 2005
1 - 5Chapter Five: The King of Omashu Mar. 18, 2005
1 - 6Chapter Six: Imprisoned Mar. 25, 2005
1 - 7
1 - 8Chapter Eight: Avatar Roku (Winter Solstice, Part 2) Apr. 15, 2005
1 - 9Chapter Nine: The Waterbending Scroll Apr. 29, 2005
1 - 10Chapter Ten: Jet May. 06, 2005
1 - 11Chapter Eleven: The Great Divide May. 20, 2005
1 - 12Chapter Twelve: The Storm Jun. 03, 2005
1 - 13Chapter Thirteen: The Blue Spirit Jun. 17, 2005
1 - 14Chapter Fourteen: The Fortuneteller Sep. 23, 2005
1 - 15Chapter Fifteen: Bato of the Water Tribe Oct. 07, 2005
1 - 16Chapter Sixteen: The Deserter Oct. 21, 2005
1 - 17Chapter Seventeen: The Northern Air Temple Nov. 04, 2005
1 - 18Chapter Eighteen: The Waterbending Master Nov. 18, 2005
1 - 19Chapter Nineteen: The Siege of the North Part 1 Dec. 02, 2005
1 - 20Chapter Twenty: The Siege of the North Part 2 Dec. 02, 2005