ThunderCats S1E20
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S01E20 — Return to Thundera
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ThunderCats

S01E20 Return to Thundera

1985-10-04

The Thundercats give Lion-O a quick demonstration of the time capsule they found from the caveman. Intrigued, Lion-O decides to activate it while on night watch, inadvertently getting caught in its projection rays. This leads him back to Thundera, just moments before the catastrophic tremor that would obliterate the planet. Meanwhile, the Mutants unleash a menacing robot monster that wreaks havoc in Cats' Lair. In Thundera's past, Lion-O encounters his father, Claudus, and heroically saves him from a Mutant ambush. Grateful, Claudus shares the blueprints for the robot that threatens the Thundercats in Lion-O's present.

Season 1 Episodes

1
Exodus
1985-01-23
 2
The Unholy Alliance
1985-01-23
 3
Berbils
1985-09-11
 4
The Slaves of Castle Plun-Darr
1985-09-12
 5
Pumm-Ra
1985-09-13
 6
The Terror of Hammerhand
1985-09-16
 7
Trouble with Time
1985-09-17
 8
The Tower of Traps
1985-09-18
 9
The Garden of Delights
1985-09-19
 10
Mandora: the Evil Chaser
1985-09-20
 11
The Ghost Warrior
1985-09-23
 12
The Doomgaze
1985-09-24
 13
Lord of the Snows
1985-09-25
 14
The Spaceship Beneath the Sands
1985-09-26
 15
The Time Capsule
1985-09-27
 16
The Fireballs of Plun-Darr
1985-09-30
 17
All That Glitters
1985-10-01
 18
Spitting Image
1985-10-02
 19
Mongor
1985-10-03
 20
Return to Thundera
1985-10-04
 21
Dr. Dometone
1985-10-07
 22
The Astral Prison
1985-10-08
 23
The Crystal Queen
1985-10-09
 24
Safari Joe
1985-10-10
 25
Snarf Takes Up the Challenge
1985-10-11
 26
Sixth Sense
1985-10-28
 27
The Thunder-Cutter
1985-10-29
 28
The Wolfrat
1985-10-30
 29
Feliner (1)
1985-10-31
 30
Feliner (2)
1985-11-01
 31
Mandora and the Pirates
1985-11-04
 32
Return of the Driller
1985-11-05
 33
Dimension Doom
1985-11-06
 34
Queen of 8 Legs
1985-11-07
 35
Sword in a Hole
1985-11-08
 36
The Evil Harp of Charr-Nin
1985-11-11
 37
Lion-O's Anointment First Day: Trial of Strength
1985-11-12
 38
The Demolisher
1985-11-13
 39
Monkian's Bargain
1985-11-14
 40
Tight Squeeze
1985-11-15
 41
The Micrits
1985-11-18
 42
Lion-O's Anointment Second Day: The Trial of Speed
1985-11-19
 43
The Rock Giant
1985-11-20
 44
Jackalman's Rebellion
1985-11-21
 45
Turmagar the Tuska
1985-11-22
 46
Lion-O's Anointment Third Day: Trial of Cunning
1985-11-25
 47
The Mumm-Ra Berbil
1985-11-26
 48
Mechanical Plague
1985-11-27
 49
Trapped
1985-11-28
 50
Lion-O's Anointment Fourth Day: The Trial of Mind Power
1985-11-29
 51
Excalibur
1985-12-02
 52
Secret of the Ice King
1985-12-03
 53
Good and Ugly
1985-12-04
 54
The Transfer
1985-12-05
 55
Divide and Conquer
1985-12-06
 56
Dream Master
1985-12-09
 57
Out of Sight
1985-12-10
 58
The Mountain
1985-12-11
 59
The Superpower Potion
1985-12-12
 60
Eye of the Beholder
1985-12-13
 61
Lion-O's Anointment Final Day: The Trial of Evil
1985-12-16
 62
The Trouble with ThunderKittens
1985-12-17
 63
Mumm-Rana
1985-12-18
 64
The Shifter
1985-12-19
 65
Fond Memories
1985-12-20