The series ThunderCats consists of 4 seasons.

Season 1:

1. The Origin of the ThunderCats - Part 1
2. The Origin of the ThunderCats - Part 2
3. The Origin of the ThunderCats - Part 3
4. The Return of the ThunderCats
5. The Trial of the ThunderCats
6. The Invasion of the Mutants
7. The Symbol of the ThunderCats
8. The Magic Sword
9. The War of the Mutants
10. The Return of the ThunderCats
11. The ThunderCats Duel
12. The House of the ThunderCats
13. The Test of Power
14. The Mystery of the Full Moon
15. The Strength of the ThunderCats
16. The Return of the Mutants
17. The Revenge of the ThunderCats
18. The Power of the ThunderCats
19. The Battle from Beyond
20. The Awakening of the ThunderCats
21. The ThunderCats Challenge
22. The Magic of the Heart
23. The Battle of the Future
24. The Cave of Power
25. The Test of Strength
26. The Battle of Evil
27. The Return of the Mutants
28. The ThunderCats Spell
29. The Tournament of Evil
30. The Shadow of Evil
31. The ThunderCats War
32. The House of Mystery
33. The Time Machine
34. The Return of the ThunderCats
35. The Cave of Fear
36. The Shadow of the Moon
37. The Secret of the ThunderCats
38. The Magic Garment
39. The Battle of the Wizards
40. The Power of Friendship
41. The Mysterious Enemy
42. The Final Challenge
43. The End Battle
44. The Power of Magic
45. The Return of Evil
46. The Test of Power
47. The Mutants' Challenge
48. The Shadow of the Full Moon
49. The Lost Kingdom
50. The Evil Spell
51. The Return of the ThunderCats
52. The Sword of Truth
53. The New Threat
54. The ThunderCats' Punishment
55. The Battle of Evil
56. The King's Revenge
57. The Return of Mystery
58. The Revenge of the Mutants
59. The Ultimate Power
60. The Past Adventure
61. The Magic of the Future
62. The Shadow of War
63. The Final Battle
64. The ThunderCats' Comeback
65. The Return of the End

Season 2:

1. The Return of the Enemy
2. The Power of Evil
3. The Moon's Spell
4. The Mystery Cave
5. The Wizards' Battle
6. The Return of the Mutants
7. The King's Return
8. The Final Challenge
9. The Sword of Truth
10. The Battle of Darkness
11. The ThunderCats' War
12. The Fall of the Kingdom
13. The Invisible Enemy
14. The Power of Magic
15. The Shadow of Evil
16. The New Threat
17. The ThunderCats' Revenge
18. The Battle for the Lost Kingdom
19. The Return of Evil
20. The Magic Sword
21. The Power of Evil
22. The Trial by Fire
23. The Mutants' Revenge
24. The Curse of Evil
25. The Battle for the Sword
26. The Cave of Power
27. The End of the Battle
28. The Return of the ThunderCats
29. The Final War
30. The Victory of the ThunderCats

Season 3:

1. The Curse of the ThunderCats
2. The Return of the Mutants
3. The Lost Planet
4. The Journey to the Past
5. The Final Battle
6. The Mysterious Enemy
7. The Mask of Power
8. The Return of Mumm-Ra
9. The Power of Nature
10. The Return of the Sorcerer
11. The Return of the Heavens
12. The Shadow of Evil
13. The Power of Darkness
14. The Wizards' Battle
15. The Awakening of the ThunderCats
16. The Planet's Rebellion
17. The Secret of the Sword
18. The Return of the Magicians
19. The Cave of Destruction
20. The Last Chance
21. The Final Journey
22. The War of the Heavens
23. The Lost Kingdom
24. The Last Showdown

Season 4:

1. The Sword of the ThunderCats
2. The Return of the Mutants
3. The Final Battle
4. The Magic of the Sorcerer
5. The Power of Darkness
6. The End of Mumm-Ra