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26 Episodes 2011 - 2012
Fri, Jul 29, 2011 30 mins
Part 1 of 2. Brave Prince Lion-O is chosen to be the next king.
Conclusion. A betrayal leaves Cat Kingdom open to an attack by the evil Mumm-Ra.
Fri, Aug 5, 2011 30 mins
The gang are trapped by pirates while crossing the Sea of Sand.
Fri, Aug 12, 2011 30 mins
Lizard assassins hunt the team.
Fri, Aug 19, 2011 30 mins
The team search for Thundrilium and learn more about Panthro and Grune's past.
Fri, Aug 26, 2011 30 mins
The Cats look for the Book of Omens and navigate a dangerous labyrinth.
Fri, Sep 2, 2011 30 mins
Lion-O is transported into the Book of Omens.
Fri, Sep 9, 2011 30 mins
A duelist collects swords and sets his sights on the Sword of Omens.
Fri, Oct 28, 2011 30 mins
A group of robot bears need help from the ThunderCats.
Fri, Nov 4, 2011 30 mins
Lion-O tries to reveal more about the Sword of Omens.
Fri, Nov 11, 2011 30 mins
The gang come across a school in an enchanted forest.
Fri, Nov 18, 2011 30 mins
Tygra's jealousy boils over, leading to a clash with Lion-O.
Fri, Nov 25, 2011 30 mins
Lion-O and Tygra take on Mumm-Ra in a battle for the Spirit Stone in the Season 1 finale.
Sat, Mar 24, 2012 30 mins
The 'Cats battle Mumm-Ra's lizard army; Panthro receives a new set of robotic arms.
Sat, Mar 31, 2012 30 mins
Part 1 of 2. A fatal fall takes Lion-O to the Astral Plane, where he learns he'll have to fight for a second chance at life by facing off against his teammates.
Sat, Apr 7, 2012 30 mins
Conclusion. Lion-O launches a rescue mission to save the team from Mumm-Ra's pyramid.
Sat, Apr 14, 2012 30 mins
Lion-O and Tygra find the home of the lost Tiger clan.
Sat, Apr 21, 2012 30 mins
WilyKit and WilyKat are hunted during their search for food.
Sat, Apr 28, 2012 30 mins
A refugee cat is forced to fight in gladiator-style battles in a city of dogs.
Sat, May 5, 2012 30 mins
The team discover a mine filled with cats who are searching for the Sword of Plundarr on the orders of Ratar-O.
Sat, May 12, 2012 30 mins
Mumm-Ra goes after the sword of Plun-Darr.
Sat, May 19, 2012 30 mins
A thief in Dog City is trailed by WilyKit, WilyKat and Snarf.
Sat, May 26, 2012 30 mins
The team try to collect a magical elixir capable of thwarting Mumm-Ra.
Sat, Jun 2, 2012 30 mins
A mad scientist tries to move the cats' souls into robotic bodies.
Sat, Jun 9, 2012 30 mins
Part 1 of 2. The team visit a sky city ruled by birds.
Sat, Jun 16, 2012 30 mins
Conclusion. The team try to keep Mumm-Ra away from the Tech Stone.