Watch ThunderCats (2011)

Thundercats tells the story of a group of human-like cats, and their struggle against the evil Mumm-Raa, and his army of mutants, in this re-incarnation of the classic 1980's cartoon series. The series was created by Ethan Spaulding and Michael Jelenic as a fusion between American and Japanese animation styles.

The story comes across darker with new twists on the original storyline. This time around, the main character, Lion-O, a prince of the Kingdom of Thundera, leads a mismatched, yet resourceful band of cats to flee, after the city is overtaken by the lizard army led by Mumm-Raa and his generals, Slithe, a lizard, and Grune, a cat and traitor-general to Thundera. Lion-O takes his birthright, the legendary Sword of Omens, and his fellow Thundercats, on a journey across Third Earth, encountering a host of friends and enemies in search of a way to defeat Mumm-Raa.

Each of the characters in Thundercats, even side characters and villains, show up at different times and have altered back-stories. Lion-O, who is the prince and heir to the throne, (voiced by Will Friedle), is accompanied by Tigra, Cheetara, WilyKit, Wilykat, Snarf, and Panthro, (who shows up in later episodes). Tigra, is Lion-O's older brother and fellow prince. Cheetara, becomes a love interest of Tigra and Lion-O, and is one of Thundera's clerics/royal guards led by Jaga. Snarf cannot talk, and is Lion-O's pet, while WilyKit and WilyKat are orphans and pickpockets, who are searching for a fabled city of gold. Panthro is a lost general, that was betrayed by General Grune, and left for dead.

Other notable cameos and appearances include Monkian, Vultureman, Jackalman, Pumyra, and the Berbils. A cameo appearance is even made by Larry Kenney, the actor who originally voiced Lion-O in the original Thundercats. Kenney voices Lion-O's father, Claudius, who appears in the first two episodes.

Thundercats was released July 29, 2011 to air on Cartoon Network. It was produced by Warner Bros. Animation and Studio 4

Friday 8:00 PM et/pt on Cartoon Network
1 Season, 26 Episodes - Canceled/Ended
July 1, 2011
Animation & Cartoons, Children
7.9/10
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ThunderCats (2011) Full Episode Guide

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

  • 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.

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

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

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

  • 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.

  • The Thundercats discover a cat refugee, Pumyra, being forced to fight as a gladiator in a city of Dogs!

  • 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.

  • Lion-O and Tygra discover the village of the lost Tiger clan, but what secrets do they hold?

  • 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.

  • Lion-O and Tygra confront Mumm-Ra in a battle for the Spirit Stone.

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

  • The Thundercats encounter a school of magic paper arts in an enchanted forest.

  • The Cats follow the trail 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. Lion-O must learn to use Sight Beyond Sight.

  • Tiny robot bears seek help from the ThunderCats to save them from a slave trader who values their technical and construction skills.

  • While traveling through a village built on swordsmanship, Lion-O's cockiness loses him the Sword of Omens to the Duelist, a villainous sword-collector. With the help of the listless Drifter, Lion-O must get it back.

  • Lion-O ventures into the Book of Omens becomes reincarnated as his famous ancestor, the valiant Leo, who led the rebellion against Mumm-Ra in a previous millennium. Discovered is the origin of the Stones of Power and the Cats' relationship to Mumm-Ra and the other animals.

  • The Cats must endure a series of challenges in order to finally get the Book of Omens, but Mumm-Ra is hot on their trail. Lion-O must is desperate to stop him before the book gets into the wrong hands.

  • The Thundercats are being followed by the ruthless Lizard assassins led by Slithe. Introducing Panthro and the Thundertank!

  • Lion-O seeks revenge on Mumm-Ra for killing his father and leads the others to the Sea of Sand. They team up with a pirate crew on their own quest for revenge on the Ramlak, a deadly sea creature that destroyed their village, and Lion-O learns an important lesson.

  • Meet Lion-O, the young heir to the throne and future leader of the Thundercats! Watch as he defends his kingdom from the evil sorcerer Mumm-Ra and evolves into a hero.

  • Meet Lion-O, the young heir to the throne and future leader of the Thundercats! Watch as he defends his kingdom from the evil sorcerer Mumm-Ra and evolves into a hero.

Most Popular ThunderCats (2011) Episodes

  • Season 1 Episode 1 Omens, Part 1 7/29/2011

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