Aw, yeah!
Burgers for lunch!
You get the portobello-mushroom
burger?
You porto-betta believe it!
Oh!
Order up!
Yeah, yeah, yeah!
Aw, yeah.
This is gonna be good!
Yeah, but I feel like
we're forgetting something.
Mordecai and Rigby!
You forgot to fill
that pothole!
Oh, yeah.
That thing.
Well, see,
I think we'll work better
if we take
a snack break.
We promise
to do it after.
No! No burgers!
Just fill the pothole,
or you're fired!
Dude,
just one bite?
There's nothing on earth
that's gonna stop me
from eating this burger.
Aw, man. Now the pothole's
way bigger!
Whoa...
Dude,
come on.
Ah!
Aah!
What the—
Aah!
Dude, he's waking up.
Huh? Wha—? What's goin' on?
Who are you guys?
We're Mordecai and Rigby.
Who are you?
I'm Party Horse,
and I like to party!
So, hey, uh, where am I?
You're on Earth, dude.
Earth?
Wait. What country is this?
U.S.A., man! Land of the free,
home of the brave!
Oh! I remember now!
Hyah!
Aw, man.
Benson just hung that up.
I'm sorry. It's just...
U.S. History is a touchy
subject for me.
Whoa. They have U.S. History
where you're from?
Yeah. That's why I'm here
in the first place.
Back on Party Horse Planet,
partying wasn't just a hobby.
It was a way of life.
Whoo!
Everyone partied nonstop,
day and night,
around the clock.
It was the best, man.
Unh unh unh!
Unh unh, unh unh unh!
Unh unh!
Until we had to go to school.
Ugh! Bleb-bleb-bleb-bleb-bleb.
They said in order
to become legit party horses,
we had to pass
a U.S. History test.
Party's over!
Because Professor Party Horse
is out partying,
I'm gonna have to give you
this test.
Principal Party Horse, sir?
What is it,
Party Horse 42699?
Can I go to the bathroom?
I promise I'll come right back
and take this test.
Promise?
Promise.
And then I totally bailed!
Ntz, ntz, ntz, ntz!
Whoo!
Bottom line, guys—
If I don't pass
the U.S. History test,
I'll never be able
to party again.
Whoa.
That's rough, dude.
I still don't get why they have
U.S. History on another planet.
It's typical school, man!
They don't even know!
So you guys think
you could, like,
help me study or somethin'?
Party horse, we'll help you
pass that test.
Because we've always wanted
to help an alien
pass a U.S. History test.
Yeah, ever since we saw
that movie with the alien.
Whoo! All right!
Ntz, ntz, ntz, ntz!
Okay, what's a good
history topic?
Um... Presidents!
Ah, good one.
"president."
"Of partying."
I don't think
that's a real topic.
No, no.
Just give it a second.
Whoa! That dancing baby
knows how to party!
Uh, maybe the internet's
too distracting.
Okay. Let's find
the history section.
Huh?
Ntz ntz ntz ntz!
Aw! Aw!
I never thought
I'd say this,
but the library's
too distracting.
Um, guys,
I'm worried it's gonna be
hard to throw a party
out here
'cause it's so boring.
That's the idea,
Party Horse.
Now let's study already.
You're the one
who asked us for help.
Aah!
Look. Guys.
I'm gonna be real with you.
I appreciate
what you're doing,
but I think
I'll study better
if I just take
a quick snack break.
Oh, come on!
That's the lamest excuse
in the book.
Yeah, I don't even use that one
anymore very often.
Look, I promise that
if we go eat something,
I'll study right after.
Right after.
You promise?
Promise.
Mm. Whoo!
Now this is a snack break!
Okay, we're done.
Now we gotta study.
Aw, come on!
Just one more round!
No! No more distractions,
Party Horse!
Nothing on earth is gonna keep
you from studying for that test!
Man, I gotta stop
saying that.
He found me.
I don't know how,
but he found me.
What? Who found you?
Principal Party Horse.
Party Horse,
I know you're in there!
Come out right now and take
that U.S. History test!
I'll take it when I want,
which is never, old man!
If you don't come out
and take that test right now,
I'm gonna blow up the Earth
with this detonator!
Whoa, what?
Can he do that?
Yeah.
Now, if you don't come out
on the count of three,
your party's gonna end
with a bang!
One... Two...
Two and a half...
Wait! Party Horse
just isn't ready yet!
He needs more time
to study!
He's had plenty of time!
Yeah,
but it's not his fault!
We distracted him by getting him
to play video games!
Yeah, that's it—
Video games!
Can't get enough of 'em
here.
Look, just give him one hour
to study. Please.
All right, fine.
One hour.
But if he fails
the U.S. History test,
you'll all be history!
Aw, man, thanks so much,
you guys.
Listen, Party Horse—
Partying's cool and all,
but now the whole Earth's
on the line.
You have got to study,
man.
No problemo, bros.
I promise I'm gonna cram harder
than I've ever crammed
so I can pass that test and keep
your planet from blowing up.
The U.S. History test
consists of
100 multiple-choice questions.
Fill in each circle completely
with a Number 2 pencil.
You have one hour.
And since
I expect you to fail,
I'm going to make an example
of you
so all the party horses
back home will see what happens
when you party without
a proper grasp of U.S. History.
Good luck, Party Horse.
The fate of this Earth
rests in your hooves.
Begin!
Hm hm! He's got this.
What's going on here?
Did you finish
filling the pothole?
Why is there a horse
taking a te—
Look, Benson, I know
we normally don't have
very good excuses
for why we don't do stuff,
but we definitely have
a good one this time.
That horse right there
fell out of the sky
and has to
pass a History test,
or the Earth
is gonna explode.
What?
Shh! Test taking in progress!
Oh!
Looks like
you've been "lead" astray.
Look!
Aw, come on!
I just put that up!
Grr!
Party horse, catch!
No! I don't want Party Horse
to succeed!
Pencils down!
Well, well, well...
Your friends may have led
a horse to a U.S. History test,
but let's see
if they made him think.
Now... give me that test.
Principal Party Horse,
I may have failed this test,
but if I've learned
one thing,
it's that partying is an
important part of U.S. History.
Go on.
Well, sir, it's a known fact
that the biggest events in U.S.
History were all about parties—
The Boston Tea Party,
the two-party system,
the other stuff
that America has with parties.
Think about it, man!
Look, I know I haven't been
the best student in the past.
You've been following me
for a long time,
and you've blown up
a lot of planets because of me.
But I'm done
running from my problems.
Don't blame these guys
for the stuff I did.
They did their best
to help me,
and it's not their fault that
I'm a nonstop party machine.
That's on me. It's time I take
responsibility for my actions.
So please, no matter
how I do on this test,
promise me you won't
blow up the Earth.
Responsibility.
I've been waiting a long time to
hear you say that, Party Horse.
It's settled, then.
I promise
not to blow up the Earth,
no matter how you did
on this test.
All right, I'll just take
a look here and—
Dork horse!
Psych! No one's ever gonna stop
this party horse!
Ntz ntz ntz!
Aww! Aww!
Ntz ntz! Ntz ntz!
42699! 42699!
Party Horse out!
No! Party horse!
I never should have promised
that I wouldn't blow up
the Earth,
regardless of the outcome
of your test!
Just please
fill up the pothole.