시즌 4
아트워크
| # | 이미지 | 제목 | 방영일 |
|---|---|---|---|
| 1 |  | Return to Thundera! (1) | 1989. 9. 4. |
| 2 |  | Return to Thundera! (2) | 1989. 9. 5. |
| 3 |  | Return to Thundera! (3) | 1989. 9. 6. |
| 4 |  | Return to Thundera! (4) | 1989. 9. 7. |
| 5 |  | Return to Thundera! (5) | 1989. 9. 8. |
| 6 |  | Leah | 1989. 9. 11. |
| 7 |  | Frogman | 1989. 9. 12. |
| 8 |  | The Heritage | 1989. 9. 13. |
| 9 |  | Screwloose | 1989. 9. 14. |
| 10 |  | Malcar | 1989. 9. 15. |
| 11 |  | Helpless Laughter | 1989. 9. 18. |
| 12 |  | Cracker's Revenge | 1989. 9. 19. |
| 13 |  | The Mossland Monster | 1989. 9. 20. |
| 14 |  | Ma-Mutt's Confusion | 1989. 9. 21. |
| 15 |  | Shadowmaster | 1989. 9. 22. |
| 16 |  | Swan Song | 1989. 9. 25. |
| 17 |  | Touch of Amortus | 1989. 9. 26. |
| 18 |  | The Zaxx Factor | 1989. 9. 27. |
| 19 |  | Well of Doubt | 1989. 9. 28. |
| 20 |  | The Book of Omens | 1989. 9. 29. |