24 Available, 26 Aired
Last Aired S01E26 on Jun 16, 2012
24 episodes available of 26 aired
6.4 (12 Ratings)
30 Min

ThunderCats is an American/Japanese animated television series, produced by Ethan Spaulding and Michael Jelenic. A reboot of the original 1980s TV series of the same name, ThunderCats was developed by Warner Bros. Animation and Studio 4°C, and combined elements of western animation, with Japanese anime. The series began with an hour-long premiere on Cartoon Network on July 29, 2011. Following the destruction of their home, the kingdom of Thundera, the ThunderCats are forced to roam the planet Third Earth, in order to find a way to defeat the evil sorcerer Mumm-Ra, who plans on taking over the universe. Story-wise the series attempts to take a much darker and more cinematic approach than the original show, featuring a lot more focus on characterization and more sophisticated themes. Initially planned for 52 episodes, it was confirmed by ThunderCats art-director Dan Norton in early 2013 that the show had been canceled after only one season. Reruns of the show later aired on Adult Swim's Toonami block.

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All ThunderCats (2011) Episodes

ThunderCats Seasons

  1. Watch ThunderCats Season 1 S01
    24 of 26 Ep. Available 2011

ThunderCats Episodes

  1. 26 Watch ThunderCats S01E26 online - What Lies Above (Part 2)
    Not Available Aired on Jun 16, 2012
  2. 25
    Available Aired on Jun 09, 2012
  3. 24
    Available Aired on Jun 02, 2012
  4. 23
    Not Available Aired on May 26, 2012
  5. 22
    Available Aired on May 19, 2012
  6. 21
    Available Aired on May 12, 2012
  7. 20
    Available Aired on May 05, 2012
  8. 19
    Available Aired on Apr 28, 2012
  9. 18
    Available Aired on Apr 21, 2012
  10. 17
    Available Aired on Apr 14, 2012
  11. 16
    Available Aired on Apr 07, 2012
  12. 15
    Available Aired on Mar 31, 2012
  13. 14
    Available Aired on Mar 24, 2012
  14. 13
    Available Aired on Nov 25, 2011
  15. 12
    Available Aired on Nov 18, 2011
  16. 11
    Available Aired on Nov 11, 2011
  17. 10
    Available Aired on Nov 04, 2011
  18. 9
    Available Aired on Oct 28, 2011
  19. 8
    Available Aired on Sep 09, 2011
  20. 7
    Available Aired on Sep 02, 2011
  21. 6
    Available Aired on Aug 26, 2011
  22. 5
    Available Aired on Aug 19, 2011
  23. 4
    Available Aired on Aug 12, 2011
  24. 3
    Available Aired on Aug 05, 2011
  25. 2
    Available Aired on Jul 29, 2011
  26. 1
    Available Aired on Jul 29, 2011

Watch ThunderCats season 1 episode 26 (S01E26)

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The ThunderCats must stop Mumm-Ra from getting the Tech Stone!

Watch ThunderCats season 1 episode 25 (S01E25)

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The book of Omens leads the Thundercats to a city in the sky ruled by birds!

Watch ThunderCats season 1 episode 24 (S01E24)

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After making it back to the City of Dogs, Panthro is wondering why the Book of Omens is pointing to the sky. Lion-O runs into Jorma who had survived the attack on Thundera and has made it home. Upon studying the book, Jorma concludes that one of the stones the ThunderCats are after is somewhere in the sky. While exploring a secret scrap pile where new scrap metal falls from the sky, Lion-O, Tygra, Panthro, and Jorma are attacked by Necromech robots which end up stealing the Book of Omens. Upon tracking the Necromech robots, Lion-O, Tygra, and Panthro discover that they work for the Soul Sever (an alien turned robot by the Necromechs) who plans to use the power of the Book of Omens in order to find vessels for the three spirits of his deceased family.

Watch ThunderCats season 1 episode 23 (S01E23)

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The Thundercats require the assistance of a snake oil salesman named Ponzie to defeat Mumm-ra’s latest monstrous form.

Watch ThunderCats season 1 episode 22 (S01E22)

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WilyKit, WilyKat, and Snarf track down a thief in Dog City.

Watch ThunderCats season 1 episode 21 (S01E21)

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

Watch ThunderCats season 1 episode 20 (S01E20)

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Arriving at Mount Plun-Darr, the ThunderCats and Pumyra discover that the Thunderian slaves are being forced to excavate the Sword of Plun-Darr for Ratar-O and his Rats.

Watch ThunderCats season 1 episode 19 (S01E19)

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A refugee cat is forced to fight in gladiator-style battles in a city of dogs.

Watch ThunderCats season 1 episode 18 (S01E18)

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While Lion-O and Tygra were off with the tiger clan adventure, the rest of the crew is keeping an eye on the Thundertank. The twins are looking for some stashed food, but it appears Snarf beat them to the goodies. Panthro and Cheetara decide to use this as an opportunity to teach these two how to survive on their own.

Watch ThunderCats season 1 episode 17 (S01E17)

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While traveling through snowy mountains in search of safe passage, Tygra and Lion-O come upon a lost tiger village and in it they find Tygra's real father. Tygra learns why his father sent him away as a baby — to save his life. But all is not as it seems in this village as the brothers learn these tigers are cursed and Tygra may be the answer to saving them — but at the cost of his own life.

Watch ThunderCats season 1 episode 16 (S01E16)

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Lion-O must finish his trials in order to rescue the other ThunderCats from Mumm-Ra and his army.

Watch ThunderCats season 1 episode 15 (S01E15)

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The ThunderCats are ambushed by Slithe who is now assisted by Kaynar and Addicus. When Lion-O is knocked into the river and pinned down by the rocks, he finds himself in the spirit world where Jaga tells him that he must pass a bunch of tests in order to return to the living. The first test taking place in the simulation of Thundera's slums has Lion-O trying to figure out which Wilykit and Wilykat has the key to pass to the next test. The second test has Lion-O having to race Cheetara through a labyrinth. Back in the living, Tygra and the other ThunderCats managed to get free from their shackles, but Slithe, Kaynar, and Addicus escape with the Sword of Omens. Tygra vows to get the Sword of Omens back.

Watch ThunderCats season 1 episode 14 (S01E14)

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The Thundercats go on the offensive taking down Mumm-Ra’s lizard army piece by piece. Lion-O appeals to the soldiers to turn against their overlord, but Mumm-Ra won’t see his army crushed so easily. He tasks Slithe with recruiting two new and vicious Generals — Addicus and Kaynar — to retaliate against the cats. Meanwhile, the Robear Berbils make Panthro a new set of robotic arms and soop up the Thundertank.

Watch ThunderCats season 1 episode 13 (S01E13)

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While Lion-O and Tygra are in the Astral Plane dealing with their issues which have been magnified by the powers of Mumm-Ra who wants them to destroy each other, the other Thundercats protect the village from Slithe, Grune and the Lizard army. The Elephants make a surprising decision after meditating and Lion-O realizes the truth of being betrayed by Tygra. Panthro has some interesting flashbacks while telling Wily Kit and Wily Kat how Grune lost his tooth, and in the end Panthro makes a sacrifice to defeat his enemy.

Watch ThunderCats season 1 episode 12 (S01E12)

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Tygra's jealousy boils over, leading to a clash with Lion-O.

Watch ThunderCats season 1 episode 11 (S01E11)

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When in the Forest of Magi Oar, the ThunderCats send WilyKit, WilyKat and Snarf to search for firewood. After they return, they start a fire and lay down to rest. Lion-O then throws a special piece of firewood that releases several seemingly evil spirits around them. After Lion-O and the rest of the ThunderCats cannot defeat them, the ThunderCats meet the Wood Forgers who have a talent for using paper magic in combat.

Watch ThunderCats season 1 episode 10 (S01E10)

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The Cats track the location of the first stone to the mystical Elephant Village, but Lion-O can't find the specific location and the forgetful Elephants no longer remember where it is.

Watch ThunderCats season 1 episode 9 (S01E09)

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The ThunderCats meet the mysterious beings who had helped them during the night and they turn out to be the Berbils, or Ro-Bears. The Berbils treat the ThunderCats with great hospitality until the village is attacked and some of the Berbils are captured. The ThunderCats help their new friends and a battle for freedom ensues.

Watch ThunderCats season 1 episode 8 (S01E08)

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As Tygra and Panthro work on the ThunderTank, Lion-O is searching for supplies and encounters a mysterious Drifter who helps teach a few important lessons. After showing off The Sword of Omens in town, Lion-O is challenged by a man known as The Duelist and must overcome himself in order to win.

Watch ThunderCats season 1 episode 7 (S01E07)

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Lion-O's soul is transported into the Book of Omens and he sees what life was like in the eyes of his ancestors as they start a rebellion against Mumm-Ra and discovers the origins of the Sword of Omens and the Warstone, which takes on the familiar shape of the Eye of Thundera during the course of events Lion-O is made to experience in his ancestor's body. Lion-O also learns from Jaga that in order to defeat Mumm-Ra, he must first find the remaining three Warstones that are scathered on Third Earth and unify the rest of the animals to create an army.

Watch ThunderCats season 1 episode 6 (S01E06)

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The ThunderCats continue their quest for the Book of Omens, which leads them to the fabled Tower of Omens. However, they will first have to get past a series of deadly traps in order to reach it. Meanwhile, Mumm-Ra grows tired of waiting and forces Jaga to reveal the Book's location, and plans to go there himself to take it at all costs.

Watch ThunderCats season 1 episode 5 (S01E05)

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The ThunderCats accompany Panthro to Cloud Peak Mine to search for Thundrilium for the Thundertank. Along the way, Panthro and Grune's past is explored, from their first encounter to the reason behind Grune's betrayal.

Watch ThunderCats season 1 episode 4 (S01E04)

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While traveling through the woods, the ThunderCats come across a group of Petalars - small plant-like creatures whose lifespans are only one day. Lion-O befriends the young Emrick as he and the others try to figure out a way out of the woods and return the Petalars to their home. Meanwhile, Slithe and his lizard army are hot on the ThunderCats' trail to eliminate them.

Watch ThunderCats season 1 episode 3 (S01E03)

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After escaping their destroyed city with the Sword of Omens, the team encounters the Fishmen, who sail the quicksand sea in search of a massive sea creature. The ThunderCats’ quest is to find the Book of Omens … but Lion-O is more interested in revenge on Mumm-Ra.

Watch ThunderCats season 1 episode 2 (S01E02)

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An unforeseen betrayal by a former comrade brings destruction upon the Cat Kingdom. While King Claudus leads the fight against General Slithe and his lizard army, the evil sorcerer Mumm-Ra attempts to seize the Sword of Omens.

Watch ThunderCats season 1 episode 1 (S01E01)

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Lion-O struggles with his destiny to become the next King of Thundera, as chosen by the Sword of Omens. Meanwhile, festivities are held to celebrate General Grune's return to the Cat Kingdom.

How to watch ThunderCats online without downloading

  1. Watch ThunderCats online only at TVZion for free. No download or registration required.
  2. ThunderCats first started airing on Jul 29, 2011 and we have updated 24 out of 26 aired episodes and we will add more as they air.
  3. Please note that new ThunderCats episodes can take upto 2 days to be updated after their first airing date.
  4. To watch ThunderCats episodes, select the season and episodes from the list above and the proper episode information will appear on the right side (or below in case of mobile devices), click on the watch now button below the episode info to go to episode page, and watch the respective episode without downloading.

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