A/N: I love what you provided, Roleplayer48, and instead of being a deleted scene, this is going to be a Dr. Whooves adventure that'll be alternate universe that'll run alongside the episode itself. Now isn't that cool? Of course, this is probably my sleep deprived brain telling me to go back to back since I was working late last night.
The Last Roundup (AU): Applejack not coming back?! Call the Doctor!
*So, two weeks later after Applejack had set off on a train to the rodeo in Canterlot (against her will seeing as how it was revealed that the reason Mayor Mare wanted Applejack to compete was so she could have her prize money and NOT fix the town with it), the rest of the entire town of Ponyville are at Sweet Apple Acres and decorating inside Applejack's barn as today is the day she returns home! Or so they think!*
Fluttershy: (helping Rainbow set up yet ANOTHER Applejack related banner) Oh, I do hope Applejack will be surprised by the surprised party.
Rainbow Dash: Uh, hello? Earth to little miss forgetful! That IS the point of a surprise party, y'know!
Fluttershy: Oh, silly Dashie. I know that. But what I really meant to say was that I hope Applejack doesn't get too surprised in a way that'll leave her startled.
Rainbow Dash: (confused) What?
Fluttershy: Well, think about it, Dashie. While being surprised is nice, being startled can be very very...well, you know, startling.
Pinkie Pie: (pounces on Fluttershy while wearing a Tigger costume) SURPRISE!
Fluttershy: (still startled) Oh, Pinkie Pie. Thank goodness it's only you...(notices Pinkie wearing a Tigger costume)...in a Tigger suit?
Pinkie Pie: Mmm-hmm.
Fluttershy: Well, Pinkie. Sorry to sound rude here, but that wasn't really very funny. You startled me.
Pinkie Pie: (tries to mimic Tigger) Well, sure I did! Hoo-hoo-hoo! Everyone's scared of Tiggers!
Fluttershy: (frowns) Really, Pinkie?
Pinkie Pie: What?
Fluttershy: THAT's the whole reason you pounced me while wearing a Tigger costume? Just so you could say that one line he says in case I say a similar line to Pooh Bear such as ''you scared me'' or something?
Pinkie Pie: HEY! How did you know?
Fluttershy: You're forgetting that you, Sunrise, Twilight and most others aren't the only ones who watch TV or VHSes or DVDs around here, Pinkie.
Pinkie Pie: Hey, wait a second. I thought you said one time that you're often too busy with your animal friends to be watching TV and things.
Fluttershy: No, Pinkie. I don't think you heard me correctly. I said that I often watch TV or VHSes or DVDs with my animals from time to time when I'm NOT busy.
Pinkie Pie: Oh. Oopsie. Silly me.
Twilight Sparkle: (standing near the barn door) Quiet, you two. I think Applejack's coming. Quick! Everypony hide!
*And that's what everypony does. Flutters and Dashie hide behind some tall stacks of hay (which I'm surprised no one's considering eating since they ARE horses after all) while everypony else ducks down behind some tables. It's not too long before the barn doors open.*
Everypony In The Barn: (they come out of their hiding places the moment the door opens) SURPRISE!
Pinkie Pie: SURPRISE! (Realises something) Dang it! My timing was off!
Derpy: (revealing that she's the one who opened the door) WOW! This is the best surprise ever!
Everypony In The Barn: DERPY?!
Rainbow Dash: (facepalms) Oh no. Not this idiot again.
Fluttershy: Rainbow Dash! Manners! You don't wanna set a bad example!
Pumbaa (offscreen because him, Timon, Sunrise and Discord are still in the cinema watching these REAL MLP episodes/fanfic adaptions): Psst, Timon! Isn't that what I kept saying to you every time YOU kept misbehaving in front of Pumbaa Junior?
Timon (also offscreen): Oh, for love of all things related to us, Pumbaa! Don't start talking about HIM again!
Derpy: How did you all know today's my birthday?
Everypony In The Barn: TODAY'S YOUR BIRTHDAY?!
Sunrise Blossom: Sweet Celestia! How could we have possibly been so stupid and forgotten?!
Pinkie Pie: Hey! That makes two things to celebrate today!
Derpy: Two things? What's the other thing you were planning on celebrating?
Twilight Sparkle: Applejack's ''welcome home'' party.
Derpy: OH! Right! I actually have a letter from Applejack I'm delivering right now. But, that can wait. I wanna sing a birthday song!
Pinkie Pie: You got it, Derpy! And I know just the song for you! (Begins playing a certain song on an old record player)
Rainbow Dash: Oh no! Not Bear In The Big Blue House again!
[Sunrise Blossom]
Happy, happy, happy, happy, birthday. Birthday.
[Lyra and Bon Bon]
Happy, happy, happy, happy, birthday. Birthday.
[Fluttershy]
Happy, happy birthday.
(Pinkie Pie tries to mimic Treelo's untranslatable lemur gibberish)
[Twilight Sparkle]
Happy birthday to you.
[Derpy]
To me?
[Everypony In The Barn]
To you!
[Pinkie Pie]
[Everypony In The Barn]
Happy, happy, happy, happy, birthday. Birthday.
Happy, happy, happy, happy, birthday. Birthday.
Happy, happy, birthday.
Happy, happy, happy birthday.
Happy birthday to you!
[Derpy]
Sing it to me ONE MORE TIME!
[Everypony In The Barn]
Happy, happy, happy, happy, birthday. Birthday
[Pinkie Pie]
HAPPY!
[Everypony In The barn]
Happy, happy, happy, happy, birthday. Birthday.
[Pinkie Pie]
BIRTHDAY!
[Everypony In The Barn]
Happy, happy, birthday.
Happy, happy, happy birthday.
Happy birthday. Happy, happy, happy birthday.
Happy, happy, birthday to you!
(Song ends and everyone cheers Derpy)
Rainbow Dash: Phew! Glad that's over. Sheesh!
Sunrise Blossom: Hey! Stop being rude, Rainbow! At least that Bear In The Big Blue House is a lot more fun, enjoyable to watch and enjoy and more ''bear''able than Barney the Dino...
Rainbow Dash: (super mad) DON'T! MENTION! THAT! NAME!
Sunrise Blossom: (cowering in fear like Fluttershy normally would) Sorry.
Twilight Sparkle: (weirded out) Oooooooooooookay. Now then, Derpy. Didn't you say you had a letter from Applejack for us?
Derpy: (confused) I did?
Twilight Sparkle: Uh, yes, you did. Just before we all sang that song specially for you? Remember?
Derpy: (trying her hardest to remember) Letter. OH! THIS letter! (Shows everypony the letter) Well, why didn't you just say so?
Twilight Sparkle: (confused) Uh, didn't I already do that?
Apple Bloom: What's it say, Twilight?
Twilight Sparkle: Ahem. (Begins reading the letter) ''Dear family and friends. Not coming back to Ponyville for a while''? (Everypony gasps) ''Don't worry. Will send money soon. Even if it is against my better judgement knowing that the Mayor wants my money for no reason instead of using it to repair the town hall. Love Applejack. P.S. Tell Derpy I wished her a happy birthday.'' (Puts the letter down) That's all there is.
Apple Bloom: (begins tearing up) Applejack's not coming back?
Rainbow Dash: What do you mean Applejack's not coming back?
Granny Smith: (furious) She can't abandon her family like this! Why, THIS IS TREASON TO THE APPLE FAMILY! I'M GONNA GIVE A STERN TALKIN' TO IF SHE EVER DOES COME BACK! AND THEN I'M GONNA GROUND HER FOR...
Sunrise Blossom: Now, settle down, Granny, before you get too worked up over nothing and hurt yourself. (Gives Granny Smith her potion she often uses to calm down Twilight) Here. Take this potion. It'll help calm you down. (Granny gulps down the whole bottle in mere seconds)
Rarity: Hmm. (Gasps in an over dramatic shock) Maybe something absolutely DREADFUL must've happened to Applejack to make her not return!
Fluttershy: Maybe she's hurt, or sad, or scared!
Rainbow Dash: Well, what are we all just doing here gabbing on and on and on like a bunch of idiots?! Let's go find her!
Derpy: (gets excited) Ooh, ooh! Can I go look for her too?
Rainbow Dash: (agitated at the feather brain) WHAT?!
Twilight Sparkle: But Derpy, don't you want to stay here in the barn and enjoy your unplanned birthday party?
Derpy: Nah! That can wait until after we come back home with Applejack! Besides, I have been on any adventures since the last time we saw the doctor!
Sunrise Blossom: Actually Twilight, she makes a good point. Whatever DID happen to the doctor?
Twilight Sparkle: Hmm. Now that you both mention it, I don't have a clue. But that mystery may have to wait until some other time. Come on!
(Just then, there is a familiar trumpeting sound and the TARDIS appears in the barn. The door opens and out steps Dr. Hooves, who is immediately tackle by Derpy.)
Derpy: Doc! You're back!
Dr. Hooves: Oof! He-hello, Miss Derpy.
Derpy: (hugs the Time Lord and moves off so that he can get up) Where'd you been, Doc?
Dr. Hooves: (dusts himself off) That is rather a long story, but I did get you this, Miss Derpy. Happy Birthday. (And presents her with a wrapped box.)
Derpy: Yay, a present! (She takes it, removes the wrapping paper, and opens the box to pull out a red fez) A fez! Neat!
Dr. Hooves: Yes, fezes are cool.
Sunrise Blossom: Doc, I'm glad you're here, we need your help. (she shows him the letter from Applejack.)
Dr. Hooves: (reads the letter) Oh my, this does sound serious. To the TARDIS!
Derpy: YAY! ADVENTURE!
Sunrise Blossom: Don't worry, Apple Family! We'll search all of Equestria if we have to! We'll bring Applejack back even if it kills us!
Fluttershy: (gasps) It'll kill us?!
Rainbow Dash: (annoyed groan) Oh boy. Let's just go already.
*And so, The Mane Seven, along with the birthday pony herself, follow Dr. Hooves into the TARIDS and they are off to find their missing friend!*
A/N: I hope that you enjoy the changes that I made to this, and I do plan to explain after AJ has been found of where Dr. Hooves has been this whole time. So, if you can come up with anything for the next chapter, let me know! R&R everyone!