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ThunderCats Roar - Grune (S1E50)

ThunderCats Roar poster

The ThunderCats face the greatest threat of their lives: Grune the Destroyer! He's the ghost of an evil ThunderCat and he wants revenge! HOW ARE THEY GONNA BEAT GRUNE??? You'll have to watch the episode!

Air Date2020-11-20
GenresKids, Animation, Comedy, Action & Adventure
TV RatingTV-Y7-FV
Network(s)Cartoon Network

Storyline

The ThunderCats encounter Grune the Destroyer, a malevolent ghost from their own history who returns seeking vengeance against the team. As the spirit of an evil ThunderCat, Grune poses a unique and formidable challenge because he understands their strengths, weaknesses, and fighting techniques from the inside. His spectral nature and intimate knowledge of ThunderCat culture make him a particularly dangerous adversary who cannot be defeated through conventional combat alone.

The episode centers on the team's struggle to find a way to overcome an enemy who seems invincible. Lion-O and his companions must work together, combining their individual abilities and drawing on their bonds of friendship to devise a strategy that can counter Grune's supernatural threat. The conflict tests not only their physical prowess but also their creativity and unity as they face down this ghostly remnant of their past who knows exactly how ThunderCats think and fight.

What kids learn

Children watching this episode learn that some problems cannot be solved through strength alone and require creative thinking and collaboration. The ThunderCats' battle against Grune demonstrates that when facing a challenge that seems insurmountable, working together as a team and pooling different perspectives can reveal solutions that no single person would discover on their own. The episode shows that intelligence and strategy are just as valuable as physical power.

The story also teaches kids about confronting difficult aspects of history and legacy. Grune represents a dark chapter in ThunderCat history, and the team must acknowledge and deal with this uncomfortable truth rather than ignore it. This models how communities and individuals sometimes need to face unpleasant truths from the past in order to move forward and protect what matters in the present.

Additionally, the episode reinforces the importance of perseverance when facing seemingly impossible odds. The ThunderCats don't give up even when their enemy appears unbeatable, showing children that determination and refusing to surrender can lead to breakthroughs even in the most discouraging situations.

Parents' top 5 questions

QuestionAnswer
Is the ghost villain too scary for younger children?Grune the Destroyer is presented in the comedic, exaggerated style typical of ThunderCats Roar rather than as genuinely frightening horror content. The show maintains its lighthearted tone even during supernatural conflicts, using bright colors and humorous character reactions to keep the mood accessible. While Grune is portrayed as a serious threat within the story, the visual style and pacing are designed for the show's target elementary-school audience rather than to create genuine fear or nightmares.
What does this episode teach about dealing with difficult challenges?The episode demonstrates that overwhelming problems often require teamwork, creative thinking, and persistence rather than brute force alone. The ThunderCats must collaborate and think strategically to overcome an enemy who seems invincible through conventional means. This teaches children that when they face difficult situations at school or in life, combining their strengths with others and approaching problems from new angles can lead to solutions they wouldn't find working alone or using only obvious approaches.
Does the episode contain any inappropriate violence?ThunderCats Roar maintains cartoon-style action throughout, with exaggerated movements and no realistic depictions of injury or consequences. The conflict with Grune involves fantasy combat typical of superhero cartoons, where characters engage in battles but recover quickly without blood, lasting harm, or graphic content. The violence remains firmly in the realm of animated adventure suitable for the show's intended audience, with the focus on heroism and problem-solving rather than brutality.
What does the episode say about confronting the past?Grune represents a dark element from ThunderCat history that the team must acknowledge and address directly. The episode shows that ignoring uncomfortable truths or pretending difficult history doesn't exist won't make problems disappear. Instead, the heroes must face this legacy head-on and deal with it responsibly. This provides a framework for discussing with children how communities and individuals sometimes need to confront mistakes or difficult chapters from the past in order to protect the present and future.
Is this episode appropriate for children who are new to the series?While the episode features a villain with connections to ThunderCat lore, ThunderCats Roar is designed so individual episodes work as standalone adventures. New viewers can enjoy the story without extensive background knowledge, as the episode establishes Grune's threat and the team's dynamic through the action itself. The self-contained nature of most episodes in this series means children can jump in at various points without feeling lost or confused about ongoing storylines.

Writing

Directing

Season
Season #Episode #Episode Name
11
Fleeing the destruction of their home planet Thundera, Lion-O and the ThunderCats land on the world of Third Earth. But their enemies, the Mutants of Plun-Darr have followed them and it turns out Third Earth already has a Mumm-Ra problem.
12
Fleeing the destruction of their home planet Thundera, Lion-O and the ThunderCats land on the mysterious, dangerous, all-around awesome world of Third Earth! But their enemies, the Mutants of Plun-Darr have followed them and it turns out Third Earth already has a Mumm-Ra problem - can Lion-O learn the ropes of being a leader in time?
13
Lion-O has gotten ahold of the last jar of Thundersnaps - the best cookies Thundera had to offer! But a difficult to open cookie jar sends Lion-O and Cheetara chasing down the legend of Boggy Ben.
14
Lion-O wants to prove to the ThunderKittens that he's not just some boring old adult like Tygra, even if it means ignoring his instincts and messing with an obviously evil crystal.
15
Panthro becomes fed up with having to constantly fix things around the Cats' Lair, which proves to be a problem when an unstoppable drilling robot plans an attack.
16
A crying unicorn appears at the Cats' Lair and tells the ThunderCats that all of her unicorn friends have been captured; Tygra thinks he's just the unicorn expert to help the last of the unicorns.
17
Vultureman has got a brand new invention but there's one big problem: he stole the idea from Panthro! Oh, also Vultureman is using his invention to take over Third Earth. So, there are two big problems.
18
Third Earth is being overrun by super tough, super buff Warrior Maidens and it looks like the ThunderCats are next on their hit list! It's gonna be up to the ThunderKittens to save the day even though the kittens are so small and the Warrior Maidens are so big.
19
Barely escaping the sudden destruction of their home world, Thundera, Lion-O and the ThunderCats crash land on the mysterious and exotic planet of Third Earth, home to the evil Mumm-Ra and a bizarre host of other creatures and villains.
110
Barely escaping the sudden destruction of their home world, Thundera, Lion-O and the ThunderCats crash land on the mysterious and exotic planet of Third Earth, home to the evil Mumm-Ra and a bizarre host of other creatures and villains.
111
Feeling underappreciated by the other ThunderCats, Tygra starts hanging out with Mumm-Ra and cleaning his black pyramid. Whaaaat?
112
Cheetara is the fastest living being in the universe, until Monkian beats her in a race! Now Cheetara has to find something else to be the best at, while the rest of the ThunderCats find out how Monkian got so darn fast!
113
Lion-O "accidentally" releases a whole space prison-full of space criminals and winds up on the wrong side of the law. On the right side of the law is Mandora the Evil Chaser, a no nonsense space cop. Lion-O's gonna have to work real hard to prove he's not a criminal, just a little bit of an oaf.
114
Lion-O is tasked with mapping the beaches of Third Earth, which leads to him somehow draining the oceans of all water entirely. Woops. But a mysterious scientist with a robotic frog says they can fix everything by traveling under the earth, which is just the kinda crazy adventure Lion-O is all about.
115
Lion-O never pays attention during Tygra's training sessions so when he's asked to do a pop quiz on "sword magic" he accidentally opens a portal to the Astral Plane and releases the Nether Witch. The Witch imprisons Lion-O and Tygra in her nightmare realm and it's gonna take a lot of studying to figure out a way home. Wonder if the Astral Plane has any great teachers lying around.
116
Every time Mumm-Ra gets a hold of a magic artifact to restore his powers, the ThunderCats just smash it and turn him into a dinky skeleton again. Until today that is, because Mumm-Ra just remembered he's got the Ancient Spirits of Evil, and now he can get swole whenever he wants.
117
The Cats' Lair is attacked by gold-loving robot pirates, the Berserkers. This is a good thing, really, since it means Lion-O and the ThunderKittens can ditch their chores and fight robo-pirates instead. Just don't tell Tygra!!!
118
Freed from the Astral Plane, Jaga, ghost of the ThunderCats mentor, is now free to visit the Cats' Lair. Which means he can finally tell them why Thundera, their home world, exploded. It's story time.
119
While flying with his new invention, Panthro hits it off with a new friend, Barbastella, the Queen of the Bats. Now Panthro needs help getting ready for his big date with her, because it turns out Panthro is terrified of bats. Lion-O and Cheetara are happy to help but, wow, that is a lot to unpack.
120
After a battle with the Mutants, Jackalman gets confused and accidentally returns to the Cats' Lair with the Thundercats, he is the dumbest mutant. Jackalman pretends to be a Thundercat so his enemies won't catch him and the Thundercats pretend to play along because they feel bad for him.
121
The Thundercats are exhausted from fighting bad guys all the time so Lion-O suggests they spend a relaxing summer fun day at the beach, with no fighting. Unfortunately the beach is home to the Crabmen, giant, clawed humanoids that fight anyone who steps on their sand. Looks like summer fun day might involve some fighting.
122
While minding her own business, Cheetara is caught in a trap set by Safari Joe, the famously annoying hunter. After escaping, she rallies the other ThunderCats to help her stop Joe once and for all, by turning the tables and capturing him.
123
The ThunderCats have gotten so good at defeating the Mutants of Plun-Darr that it's basically become routine. That all changes with the arrival of the Mutants' old leader: Ratar-O, wielder of the Sword of Plun-Darr. Uh-oh.
124
Lion-O is happily playing with Snarf in their "Frolicking Field" and doesn't have a care in the world, unfortunately he's accidentally stomping all over the miniature village of the Micrits. The tiny people want to defeat the "giant orange monster" but such a quest would require a brave hero. Luckily, the Micrits have such a hero: Prince Starling. Now, let us the tell you the epic tale of Prince Starling as he journeys to find the fountain of growth and defeat the wicked Lion-O, who has no idea any of this is going on.
125
Lion-O and the other ThunderCats are thrilled to meet a brand new Thunderian: Lion-S. She's cool, good at fighting robots and, most importantly, thinks Lion-O and his Sword of Omens are really neat and interesting. Looks like the ThunderCats have a new best friend. Maybe even, a new ThunderCat?????
126
Hey everyone, it's Snarf's monthly day off. That's right, Snarf leaves the Cats' Lair to get a needed vacation by transforming into a normal cat and hanging out with a nice old lady on a farm. But his relaxing day is threatened when Snarf and the nice old lady cross paths with Mumm-Ra.
127
The Thundercats' worst nightmare comes true when their worst enemies, Mumm-Ra and The Mutants, team up after Mumm-Ra acquires The Sword of Plun-Darr.
128
Chaos reigns over Third Earth now that the Mutants and Mumm-Ra control the Cats' Lair. The Thundercats' only hope is to sneak back in and get a super secret weapon, Panthro has hidden at the heart of the Lair.
129
Tygra creates a bunch of new laws for Third Earth so Mandora can finally arrest the Mutants. Unfortunately, the ThunderCats are really bad at following their own rules and the Mutants are really good at working around them.
130
When a crate containing fifty Swords of Omen lands on Third Earth, the ThunderCats rush out in the ThunderTank to find then. Unfortunately, The Mutants and Mumm-Ra want the swords too so it's going to a race to get to them! A wacky race, you might say. We won't say that, but you might.
131
The Cheetara Corp Employee Retreat gets canceled when Baron Karnon, a mysterious corporate raider, buys them out! Now Cheetara and Jan-Jan must brave the wilds of Third Earth's most dangerous jungles to find the Baron's office and demand a meeting with the man who stole their company!
132
133
134
When the ThunderCats tell the Berbils to stop building things for the Mutants, they build a giant Berbil named Berb-cules, who takes back everything they ever built.
135
136
Barbastella reunites with her ex-girlfriend, the elitist Queen of the Rats. A jealous Panthro installs AI into all the Lair's appliances, to become King of the Machines.
137
When a local sword shop sells an ultra-powerful sword to Ratar-O, Lion-O decides he has to steal it before Ratar-O can come pick it up. Unfortunately, Lion-O is completely against stealing, but luckily, he knows someone who loves to steal... Lion-S!
138
139
140
141
142
The ThunderCats freak out when a spooky ghost dressed like a pharaoh appears in their mirrors! They quickly set about to getting rid of every reflective surface in their lair because that ghost is scary and no one wants to talk to him!
143
144
145
The Thundercats invite a super cool swamp man into the Cat's Lair who is on the run from some scary looking aliens.
146
147
148
149
150
The ThunderCats face the greatest threat of their lives: Grune the Destroyer! He's the ghost of an evil ThunderCat and he wants revenge! HOW ARE THEY GONNA BEAT GRUNE??? You'll have to watch the episode!
151
152

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