[opening theme song playing]
-♪ Their planet exploded -[chorus] ♪ Thunder, ThunderCats! ♪
-♪ They crashed on Third Earth ♪ -♪ Thunder, thunder crash!
-♪ Gotta beat up some bad guys ♪ -♪ Mummies, mutants
-♪ And make some new friends -♪ Unicorns, robots
♪ Built a big base with a cat-shaped face and now they're ready to go! ♪
♪ There's WilyKit, WilyKat, Tygra, Panthro, Cheetara, Snarf, Lion-O! ♪
[chorus] ♪ He's a brand-new Lord with a magic sword! ♪
♪ It's Thunder, thunder, thunder ThunderCats Roar! ♪
♪ Grune, Grune, Grune
[both] Oh!
[both] Ooh.
I'm not so sure about this, Bundun.
We don't belong in this scary tomb.
We're just simple farmers.
I know, Hurrick.
All we wanted
was total control of Third Earth,
but those ThunderCats defeated us.
So we're going to awaken the evil spirit trapped in here
and it will destroy the ThunderCats for us.
But, Bundun, what evil was supposed
to be locked away in here, exactly?
Who can say? One of those normal,
everyday evil spirits, I'm sure.
-How do we get in? -Hm...
[both] Ooh.
[growling]
That's not a normal, everyday evil spirit.
I am no man's normal! I am Grune the Destroyer,
and I am here to... to... uh...
Actually, where am I?
You're on Third Earth, Mr. Destroyer.
And you're here to destroy our enemies, the ThunderCats...
if you don't mind.
The ThunderCats are here?
[growling]
[both whimpering]
You know, I think we did a good thing.
Yes, we're good people.
[Panthro humming]
♪ Bologna, you know me, like nobody do ♪
♪ Bologna, no phoney, I love you too ♪
♪ Oh, Bologna
Guys, guys! You've gotta see what Jaga's been teaching me!
[laughs] What kinda weapon is that?
Double Dutch! Double Dutch! Double Dutch! Double Dutch!
Uh... all right.
It's such a joy to visit you all.
I like my home on the astral plane,
but it does get lonely sometimes.
You cats make me feel alive.
-WilyKit! -What? He's a ghost.
It sure is a good thing Jaga is on our side.
It'd be really hard to fight a ghost.
Huh. What a specifically ominous
and yet highly unlikely thing to say.
Wha...
-[alarm blaring] -What's going on?
Aw, shoot.
[Jaga] So what's all the commotion?
-[Tygra] I'm not sure... -[both whimpering]
-[Tygra] But from the looks of it-- -Ah! My crops!
[Tygra] Some giant jerk is terrorizing Third Earth!
[chuckles] No biggie.
Our ghost friend Jaga will know what to do.
Um... yes.
Run!
Uh, heh. Not that it alarms me,
but why is Jaga so scared of this rando?
Also, why does he look like a Thunderian?
That's our thing!
Hold on, Cheetara. I think he is Thunderian.
I think that's... Grune The Destroyer!
-[growls] -Who?
Grune. The Destroyer? Ugh, hang on.
No one ever pays attention to my history lessons,
but that's fine, it's all fine.
-[all] Ooh. -A laser bagel!
That's right, Lion-O.
The Thunderian Education Council made a video.
[Lion-O] Ooh! Now I love learning!
-[music playing] -[man singing]
♪ Grune, Grune, Grune
♪ Grune the Destroyer
So, any questions?
Yeah. Why don't all your lessons have a song, Tygra?
That is not what you should be taking away from that video.
We should be focused on how Grune is obviously
coming to our lair to destroy us
and take the Sword of Omens for himself!
All right. What'd I miss?
Argh!
[music playing]
So, Grune wanted to overthrow my dad
and now he's coming to get me?
He's gonna be tough to beat, if even Jaga
is scared to face him again.
-[whimpers] -That's not it, Cheetara...
I'm not scared to face Grune as an enemy...
I'm ashamed to face him as my best friend.
[all] What?
[Panthro] Keep it down! Trying to learn in here!
It's time I tell you the real story,
not the one that got recorded, via entertaining song,
onto the laser bagel.
Grune and I were the King's advisors...
but we were also best buds.
We spent all our free time hanging out, eating 'za,
and having dance parties. [chuckles]
But Grune could see that Claudus was a terrible king.
No offense, Lion-O.
None taken! He's also a terrible dad!
[Jaga] He didn't listen to anyone, and worst of all,
he didn't care about his fellow Thunderians...
he only thought about himself.
I kept quiet. I didn't wanna rock the boat.
But Grune confronted the king,
hoping there was a chance for Claudus to change.
But instead, Claudus deemed him a traitor
and declared war on him.
But he didn't give up. Grune wasn't going down without a fight.
-[growls] -No one could hope to defeat Grune the Great.
Except, that's right... me.
It was an epic battle, but I was finally able
to get the upper hand.
And once I did, Claudus ordered me
to use my magic to imprison Grune
and banish him into space and I... I... I did.
[snaps fingers]
It's my one regret...
betraying my best friend.
Wow. That's a really sad story.
But also, you're responsible for the destruction of Thundera,
so, maybe you should make room for a second regret.
Oh, yeah! [laughs]
Okay, I watched the video. Great song.
And this Grune is the worst. I hate him!
No, Panthro, catch up!
-[rumbling] -[all screaming]
ThunderCats! Show yourselves!
He's got a Thundrainium mace!
-What's Thundrainium? -Oh, I'm glad you asked!
Thundrainium is the opposite of Thundrillium...
It will disable all of our technology and skills!
Is there a catchy song about this?
I think I get it.
Tygra is saying with that mace, Grune is--
He's unstoppable!
-[growls] -[all gasping]
[all screaming]
[all whimpering]
-[all exclaiming] -He big.
Time to destroy the ThunderCats and get my revenge!
Jaga, my former-BFF.
How dare you face me after what you did?
-You came to me! -And you.
I'd recognize that dum-dum face anywhere...
tell me you aren't the monster king's son?
Well, our relationship is actually
a little complicated right now.
I'm trying to work through it in therapy, but--
So, that buffoon's dynasty is still intact?
And Jaga, you're still serving him?
Unacceptable!
I couldn't stop Claudus, but I'll make sure
you don't live to repeat his mistakes!
Those sound like fight scene words! ThunderCats, ho!
Huh?
Oh, right. [laughs] Ghost rules.
-[announcer] Maced! -Wait, so do we hate him or not?
It's kind of a shades of grey thing!
Snarf, Code Hairball!
[announcer] Maced!
Let's see if you can catch me, Grune.
[panting]
-[grunts] -[announcer] Maced!
-Let's get him! -Yeah!
[grunting] That didn't work.
-[both grunting] -[announcer] Maced!
[laughs] Is that all you've got?
Grune! Prepare to be hypnotized!
[meows, purrs] Enough!
-Uh-oh. -[announcer] Maced!
You wanted to face the ThunderCats?
Face this!
I told you... Thundrainium...
Well, I forgot, okay?
Next time make a song.
Time for you to learn why they call me Grune the Destroyer!
Oh, no! He's gonna Grune me!
Wait, hear me out, old friend.
Ugh.
Please, don't hurt the ThunderCats
for the mistakes I made.
I should have just told Claudus to stuff it.
Best friends don't trap each other
in a magical tomb for possibly all eternity...
I see that now.
And yet after all that, nothing has changed.
You're still covering for a fop doodle of a Lord of the ThunderCats,
who doesn't deserve the title or the Sword of Omens!
-[screams] -Wait!
Ha! Do you really think you can stop me?
I think maybe long-run I could--
but it doesn't matter, because I'm not going to fight you.
I'm going to surrender.
[all gasping]
You're right, Grune.
Claudus definitely didn't deserve
to be Lord of the ThunderCats...
And maybe I don't either.
What are you saying, Lion-O?
Come on, guys, I don't know anything about leading
or being a king.
All I know is, I won't let you get hurt because of me.
So... I'll give up being Lord
and give you the Sword of Omens,
if you agree to leave my friends alone.
[gasps]
Jaga, is this the kind of thing
you've been teaching the kid?
Yes. All the ThunderCats have been showing Lion-O
how to be a better king than his father was.
Ugh. I let myself get so blinded by revenge.
I was wrong. You deserve this more than I do.
You deserve to be king.
I'm sorry for attacking you all.
I used to be proud to be a ThunderCat...
and now I'm proud to have such noble successors.
Aw, buddy. You really are Grune the Great.
Ghost hug!
-[all whimpering] -What are you gonna do now?
I don't know.
Then maybe we can pick up where we left off, old friend.
-[upbeat music playing] -[all cheering]
[Panthro] I love being a ThunderCat!
["Grune the Destroyer" playing]