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Thundercats

Season 1 Episode 20: Return to Thundera

Lion-O accidentally activates the time capsule, which hurls him back in time to Thundera exactly one day before its destruction. Meanwhile, the Mutants assault Cat's Lair with their most powerful and deadly weapon yet.

Season 1 Episodes:

Episode 1 Exodus

1. Exodus

Aired: Jan 22, 1985

Wise Jaga leads a group of nobles, the Thundercats, as they escape their home...

Episode 2 The Unholy Alliance

2. The Unholy Alliance

Aired: Jan 22, 1985

Needing allies, Mumm-ra bends the Mutants to his will. The Mutants go after t...

Episode 3 Berbils

3. Berbils

Aired: Sep 11, 1985

The story about how Thundercats and Berbils become allies and friends; their ...

Episode 5 Pumm-Ra

5. Pumm-Ra

Aired: Sep 13, 1985

Mumm-Ra takes the guise of Pumm-Ra, a Thunderian, to infiltrate and sabotage ...

Episode 7 Trouble with Time

7. Trouble with Time

Aired: Sep 17, 1985

When Tigra rapidly ages after falling under the deadly enchantment of a place...

Episode 8 The Tower of Traps

8. The Tower of Traps

Aired: Sep 18, 1985

Lion-O and Wilykit must rescue Wilykit from the ultimate fortress.

Episode 11 The Ghost Warrior

11. The Ghost Warrior

Aired: Sep 23, 1985

A tomb is accidentally opened, releasing a ghost who used to terrorize Third ...

Episode 12 The Doomgaze

12. The Doomgaze

Aired: Sep 24, 1985

Mumm-Ra plots to open a time warp prison and release the evil princess Ta-She...

Episode 13 Lord of the Snows

13. Lord of the Snows

Aired: Sep 25, 1985

When a meteorite the Thundercats can use to replenish their dwindling energy ...

Episode 15 The Time Capsule

15. The Time Capsule

Aired: Sep 27, 1985

The Thundercats search desperately for a precious device which has all the re...

Episode 17 All That Glitters

17. All That Glitters

Aired: Oct 1, 1985

Mumm-Ra tricks Lion-O into using the Sword of Omens against another Thunderca...

Episode 18 Spitting Image

18. Spitting Image

Aired: Oct 2, 1985

Mumm-Ra switches the real Panthro with a clone infused with the spirit of Ham...

Episode 19 Mongor

19. Mongor

Aired: Oct 3, 1985

Mongor, a terrible demon that feeds on the power of fear, is accidentally set...

Episode 20 Return to Thundera

20. Return to Thundera

Aired: Oct 4, 1985

Lion-O accidentally activates the time capsule, which hurls him back in time ...

Episode 21 Dr. Dometone

21. Dr. Dometone

Aired: Oct 7, 1985

The Thundercats help an undersea professor to protect a machine that prevents...

Episode 22 The Astral Prison

22. The Astral Prison

Aired: Oct 8, 1985

Jaga is captured by Nemex, an evil being from the Astral world, and Lion-O tr...

Episode 23 The Crystal Queen

23. The Crystal Queen

Aired: Oct 9, 1985

Lion-O must brave an ice palace to save a sacred bird from a cruel and greedy...

Episode 24 Safari Joe

24. Safari Joe

Aired: Oct 10, 1985

The Thundercats must match wits with Safari Joe:the most successful big-game ...

Episode 26 Sixth Sense

26. Sixth Sense

Aired: Oct 27, 1985

An alien ship crashes on Third Earth and forms a connection with Cheetara thr...

Episode 27 The Thunder-Cutter

27. The Thunder-Cutter

Aired: Oct 28, 1985

Mumm-Ra tricks Hachiman, a mighty samurai from a distant planet into believin...

Episode 28 The Wolfrat

28. The Wolfrat

Aired: Oct 29, 1985

Vultureman builds a deceptively diminutive infiltration robot and Mumm-Ra arm...

Episode 29 Feliner: Part One

29. Feliner: Part One

Aired: Oct 30, 1985

Vultureman summons Rataro and his battleship who kidnaps Snarf's nephew to us...

Episode 30 Feliner: Part Two

30. Feliner: Part Two

Aired: Oct 31, 1985

The Thundercats race to try and salvage a part they need for the Feliner befo...

Episode 33 Dimension Doom

33. Dimension Doom

Aired: Nov 5, 1985

Wizz-Ra, a mighty sorcerer and Mumm-Ra's ancient enemy, emerges after 7000 ye...

Episode 34 Queen of 8 Legs

34. Queen of 8 Legs

Aired: Nov 6, 1985

Mumm-Ra uses the birth of a powerful spider-queen to his advantage by luring ...

Episode 35 Sword in a Hole

35. Sword in a Hole

Aired: Nov 7, 1985

An S.O.S. from deep space turns out to be a trap set by Captain Shiner, a spa...

Episode 38 The Demolisher

38. The Demolisher

Aired: Nov 12, 1985

When the Thundercats face Demolisher, a warrior who battles opponents purely ...

Episode 39 Monkian's Bargain

39. Monkian's Bargain

Aired: Nov 13, 1985

Monkian goes to Mumm-Ra's pyramid and agrees to give anything if Mumm-Ra will...

Episode 40 Tight Squeeze

40. Tight Squeeze

Aired: Nov 14, 1985

After a disagreement, Vultureman leaves castle Plunn-darr and destroys all th...

Episode 41 The Micrits

41. The Micrits

Aired: Nov 17, 1985

The Micrits are tiny humanoids, their village keeps getting destroyed when th...

Episode 43 The Rock Giant

43. The Rock Giant

Aired: Nov 19, 1985

When all technology fails, Lion-O must rely on his own cunning and the forces...

Episode 45 Turmagar the Tuska

45. Turmagar the Tuska

Aired: Nov 21, 1985

The Thundercats are asked to help the Tuska defend them from the Technopede, ...

Episode 47 The Mumm-Ra Berbil

47. The Mumm-Ra Berbil

Aired: Nov 25, 1985

Mumm-Ra disguises himself as an injured Ro-Bear Berbil to infiltrate Cats Lair.

Episode 48 Mechanical Plague

48. Mechanical Plague

Aired: Nov 26, 1985

The Thundercats face a desperate struggle when Mumm-Ra resurrects various pow...

Episode 49 Trapped

49. Trapped

Aired: Nov 27, 1985

When a big storm hits Third-Earth, Wilykit and Wilykat are trapped in an old ...

Episode 51 Excalibur

51. Excalibur

Aired: Dec 1, 1985

Mumma-ra learns about Excalibur, the greatest sword ever created. He changes ...

Episode 53 Good and Ugly

53. Good and Ugly

Aired: Dec 3, 1985

Lion-O learns the meaning of not judging by appearance when he is caught up i...

Episode 54 The Transfer

54. The Transfer

Aired: Dec 4, 1985

An unknown ship containing a dangerous radioactive substance approaches Third...

Episode 55 Divide and Conquer

55. Divide and Conquer

Aired: Dec 5, 1985

Vultureman invents a voice imitator that the Mutants use to deceive, drive ap...

Episode 56 Dream Master

56. Dream Master

Aired: Dec 8, 1985

Mumm-Ra transforms into the Dream master to invade the dreams and control the...

Episode 57 Out of Sight

57. Out of Sight

Aired: Dec 9, 1985

Due to a malfunction with his invisibility whip while rescuing a warrior maid...

Episode 58 The Mountain

58. The Mountain

Aired: Dec 10, 1985

During mountain climbing, Lion-O is attacked by the Mutants and an avalanche ...

Episode 60 Eye of the Beholder

60. Eye of the Beholder

Aired: Dec 12, 1985

The Thundercats play a joke on the Mutants by creating a fake Sword of Omens ...

Episode 63 Mumm-Rana

63. Mumm-Rana

Aired: Dec 17, 1985

Mumm-Ra meets his exact opposite in Mumm-Rana, a priestess of light. He battl...

Episode 64 The Shifter

64. The Shifter

Aired: Dec 18, 1985

Vultureman invents a device that can switch one mind with another. He uses it...

Episode 65 Fond Memories

65. Fond Memories

Aired: Dec 19, 1985

Under the guise of Dr Dometome, Mumm-Ra lures Lion-O to a place where he is f...

Watch Thundercats Season 1 Episode 20 Exclusively on AppleTV

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Info about Thundercats

Seasons: 4

Current Status: Ended

Network: Syndication

Production Countries: United States, Japan

Genres:Adventure, Family, Sci-Fi, Animation, Fantasy, Action

Thundercats: Where to Watch Online in Australia?

It is also possible to rent or buy on AppleTV online.