Disc 1: Chapter 1. the boy and the iceberg
Chapter 2. The avatar returns
Chapter 3. The southern air temple
Chapter 4. The warriors of Kyoshi.
Disc 2: Chapter 5. The king of Omashu
Chapter 7. The winter solstice, part 1: the spirit world
Chapter 8: The winter solstice, part 2: Avatar Roku.
Disc 3: Chapter 9: The waterbending scroll
Chapter 11. The great divide
Disc 4: Chapter 13. The blue spirit
Chapter 14. The fortuneteller
Chapter 15. Bato of the water tribe
Chapter 16. The deserter.
Disc 5: Chapter 17. The northern air temple
Chapter 18. The waterbending master
Chapter 19. The siege of the north, part 1
Chapter 20. The siege of the north, part 2.