ThunderCats

Watch ThunderCats Season 1 Episode 21 Online

“Birth of the Blades” — Watch "ThunderCats" Season 1 Episode 21 online in HD for free. Check streaming providers, cast, and episode details.
May 12, 2012 Season 1 Episode 21 22 min TV-PG
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ThunderCats Season 1
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Season 1 Episode 21 — Aired on May 12, 2012 • runs about 22 minutes.

Directed by Masayuki Kato.

This page includes 1 official still(s) (when available) plus legal availability links.

Looking for “watch ThunderCats Season 1 Episode 21 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

Mumm-Ra arrives at Mount Plun-Darr and battles the Thundercats in an attempt to regain the Sword of Plun-Darr.

Stills

Still from ThunderCats - Season 1 Episode 21

Cast

There isn�t detailed cast information available right now.

Episodes – Season 1

1 - 1
ThunderCats - Season 1 Episode 1
Omens (1)
Jul 29, 2011
1 - 2
ThunderCats - Season 1 Episode 2
Omens (2)
Jul 29, 2011
1 - 3
ThunderCats - Season 1 Episode 3
Ramlak Rising
Aug 5, 2011
1 - 4
ThunderCats - Season 1 Episode 4
Song of the Petalars
Aug 12, 2011
1 - 5
ThunderCats - Season 1 Episode 5
Old Friends
Aug 19, 2011
1 - 6
ThunderCats - Season 1 Episode 6
Journey to the Tower of Omens
Aug 26, 2011
1 - 7
ThunderCats - Season 1 Episode 7
Legacy
Sep 2, 2011
1 - 8
ThunderCats - Season 1 Episode 8
The Duelist and the Drifter
Sep 9, 2011
1 - 9
ThunderCats - Season 1 Episode 9
Berbils
Oct 28, 2011
1 - 10
ThunderCats - Season 1 Episode 10
Sight Beyond Sight
Nov 4, 2011
1 - 11
ThunderCats - Season 1 Episode 11
The Forest of Magi Oar
Nov 11, 2011
1 - 12
ThunderCats - Season 1 Episode 12
Into the Astral Plane
Nov 18, 2011
1 - 13
ThunderCats - Season 1 Episode 13
Between Brothers
Nov 25, 2011
1 - 14
ThunderCats - Season 1 Episode 14
New Alliances
Mar 24, 2012
1 - 15
ThunderCats - Season 1 Episode 15
The Trials of Lion-O (1)
Mar 31, 2012
1 - 16
ThunderCats - Season 1 Episode 16
The Trials of Lion-O (2)
Apr 7, 2012
1 - 17
ThunderCats - Season 1 Episode 17
Native Son
Apr 14, 2012
1 - 18
ThunderCats - Season 1 Episode 18
Survival of the Fittest
Apr 21, 2012
1 - 19
ThunderCats - Season 1 Episode 19
The Pit
Apr 28, 2012
1 - 20
ThunderCats - Season 1 Episode 20
Curse of Ratilla
May 5, 2012
1 - 21
ThunderCats - Season 1 Episode 21
Birth of the Blades
May 12, 2012
1 - 22
ThunderCats - Season 1 Episode 22
The Forever Bag
May 19, 2012
1 - 23
ThunderCats - Season 1 Episode 23
Recipe for Disaster
May 26, 2012
1 - 24
ThunderCats - Season 1 Episode 24
The Soul Sever
Jun 2, 2012
1 - 25
ThunderCats - Season 1 Episode 25
What Lies Above (1)
Jun 9, 2012
1 - 26
ThunderCats - Season 1 Episode 26
What Lies Above (2)
Jun 16, 2012

Trailer / clip

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