The half-full moon lent its lunar illumination to to barren and drab southwestern American desert as a lonely black 1967 Chevy Impala made it's way steadfastly down the road. Dean sat in the driver's seat, listening to the song Renegade by Styx. Sam was in the passenger seat, staring idly out the window, and the Fourth Doctor was in the back seat, performing tricks with a yo-yo
"You know, you really should give this car some color." The Doctor babbled, creating a web out of the yo-yo string as he did so. "I mean, this car doesn't have much character in black-"
"Yeah, well there's such a thing as too much character, too," Dean snapped. "I don't want to look like some idiot driving a rainbow-colored car or whatever the hell else you want me to have."
"I never said it had to be rainbow." The Doctor said reproachfully.
"Look, you need to do some explaining." Sam said in a businesslike tone. "How are you the Doctor? Is it some kind of title that gets carried on?"
"I tend to change bodies every so often." The Doctor grinned. "It's really quite natural for someone like me. But I can't control what comes out. That's why the ears are the way they are."
"Right." Dean said.
"So, do you remember us?" Sam asked.
"Of course I do!" The Doctor said. "Sam, you just wanted to be a normal kid, without all of the hunting nonsense, watching telly and playing football - er, soccer to you. Dean, all you wanted was to earn the approval of your father, but he was lavishing much of it on Sam. There. Now, do you believe me?"
Sam and Dean glanced at each other.
"Stranger things have happened to us." Sam stated.
"And you'd have to have quite the reputation to have that freaky ice chick come hunt you down." Dean said, "Especially wearing that ridiculous scarf."
"Rubbish!" The Doctor exclaimed. "Of all the absurd - there are cultures that put this scarf on their door frames to fool evil spirits into thinking that I'm there! And-"
A bullet shattered the Doctor's sentence as it flew through the Impala and took out both windshields on its way. All three hunters ducked; Dean swerved and sword, clicking off his lights as he did so, so that darkness swallowed up the '67 Chevrolet.
The Doctor popped up, peering over the back seat, holding up the Sonic Screwdriver like a particularly clever toy he was showing to a friend. "Three cars are on your tail. You need to get off the road."
Thankfully, they where smack dab in the middle of nowhere in the American southwestern desert. Dean veered off, straight into the desert.
Meanwhile, the Eleventh Doctor and Sherlock approached the scene in the TARDIS. Sherlock, who had picked up on how to fly the TARDIS remarkably fast, was assisting the Doctor in flying the Type 40. The Doctor himself was currently on the phone, talking to the leader of the cars chasing the Impala.
"This is the Doctor speaking," The Time Lord said. "You need to stop chasing the Winchesters, I need to bring them in on a case."
"Do you have any idea what Sam is?" The leader responded.
"He's a very good friend of mine. And an invaluable ally."
"He's a time bomb. He's a weapon of Hell itself, and he is not your friend, he's an enemy of humanity."
"The woman I trust more than anyone in the Universe tried to kill me the first time she met me. As an old friend of mine once said, the circumstances of one's birth are irrelevant; it's what you do with the gift of life that matters. Stand down."
"Like hell I will," The voice responded.
The Doctor quickly whipped out his Sonic, and buzzed the radio. The three pursuing cars spun out, losing sight of the Impala.
"That won't last long," Sherlock observed. "They'll be oriented again in about ten seconds."
The Eleventh Doctor's mouth formed a perfect O as he saw the silhouette in the back of the Impala.
A moment later, light flashed across the desert as the bulb on top of the police box disguise of the TARDIS blazed into being and moved off in the opposite direction of both the time capsule itself and the Impala. As this occurred, the TARDIS signature wheezing, groaning sound echoed across the landscape.
The Fourth Doctor's eyes widened when he heard it.
"I've heard that sound before," Sam said, frowning.
"It's the sound of a TARDIS – a time travel machine," He elaborated, glancing over his shoulder at Sam and Dean. "But it can't be mine, the trip into this dimension put a lot of strain on it, it's not ready to fly yet. It must be another Time Lord's, and they're probably not a friend of our's, judging on past experiences. Be on your guard-their TARDIS could look like anything."
"Great." Dean said dully. "Now we've got two batches of who-knows-what on our tail.
"Are those cars still following us?" Sam asked.
The Doctor moved to get his Sonic out, but a gunshot caused them all to duck.
"Just one," The Doctor said, as more gunshots caused them all to duck. "Pull over."
"What?" Dean asked, "Are you crazy?"
"Trust me." The Eternity-walker responded. "I am the Doctor."
Dean glanced over at Sam, who nodded. He stopped the car.
It was a moment before their pursuer realized that Dean had stopped. The mysterious man hastily swerved his car in order to avoid hitting the Impala, and came to a stop with his headlights illuminating the Impala. It was them that he noticed the tall, Stetson-clad figure of the Doctor standing in front of the car with his hands raised and a big grin on his face.
"Hello!" he said jovially, as the driver of the other car, a muscled African-American man, got out and pointed at gun at the wanderer. "Was that you driving behind us just now? You've got a very nice truck, did you know?"
"Are you an idiot?" The other man shot at him. "I've got a gun pointed at your face! Now, where'd Sam and Dean go?"
"Oh, they're in the car." The Doctor said, reaching his hand into his pocket. The other man brandished his gun forwards, but he could clearly see the tweed bag that the Time Lord was holding. "Would you like a Jelly Baby?"
"No…" The other man said, as the Doctor popped one into his mouth.
Without taking his aim off of the time traveler, the second man crept closer – slowly at first, and then faster as he approached the Impala. When he got in range, the Time Lord abruptly threw his hat onto his adversary's face. The man fired, but the Doctor deftly leapt to the side, hurling his scarf in the opposite direction as he did so. The scarf wrapped around the second man's legs, and the Doctor tripped him so that he fell to the ground, faceplanting on the edge of the Impala and passing out.
"Damn," Dean said, walking around to see the scene.
"That's Gordon." Sam observed.
"What's he doing working for the government?" Dean inquired, noticing his uniform.
Abruptly, someone ran behind the Doctor and ruffled his hair vigorously. He spun around.
"Sorry," A gangly man wearing tweed and a bow tie said, retrieving the Doctor's hat from Gordon and plopping it on his floppy brown hair, "I always wanted to do that from the outside."
The Doctor stared at his future self for a moment, snatching back his hat without taking his eyes off the bow tied man.
"No!" The Doctor exclaimed.
"Do you two know each other?" Sam asked softly, his hand inside his jacket, resting on his gun.
"Is he working for the government?" Dean asked, his pose nearly-identical to Sam's.
"I'm really going to have that chin someday?" The Doctor asked.
"Hey!" The tweeded man said. "I endured those ears."
Abruptly two more UNIT cars drove up, and men poured out, surrounding them and pointing guns at the four travellers.
"Would you two stop acting like schoolchildren?" Dean hissed as he and Sam raised his hands. "We need to focus"
"Well, Doctor," Four said, leaning on Eleven and tossing his scarf over his future's shoulder, "We seem to be in quite the predicament."
"On your knees!" One of the solders shouted.
Sam and Dean kneeled, but the Doctors remained standing, and Eleven said, "I am not sitting on his lap."
"Go on then!" Four said, walking towards the edge of the circle, approaching one of the soldiers so that his gun was touching Four's chest.
"Aren't you supposed to shoot us?" Eleven inquired, poking one of the solders in the chest.
"But you won't," Four added.
"Because you've heard the stories," Eleven said, turning to one of the other soldiers. "They endure, even out here."
"If the Zygons-" four began.
"The Sycorax-" Eleven continued, and the two went back and forwards like a tennis match,
"The Daemons-"
"The Silurians-"
"The Autons-"
"The Daleks-"
"And a legion of dinosaurs-"
"Failed to stop me-"
'Then what in the Universe makes you think you can?" The two finished together.
The soldiers stared at each other hesitantly.
"I sure hope that's not the entire plan," Four hissed at the older Time Lord.
"The second part will be right about..." Eleven looked at the watch on the inside of his wrist, "now."
He pulled his past self closer to Sam, Dean, and the Impala, as a perfect square appeared, etched into the sand. Wind pushed out of it, blasting all the soldiers to the ground.
"How did you-?" Dean demanded, standing up.
"Increased the spacebox of the TARDIS a bit," Eleven said. "She's going to be tired, we've tried a lot of tricks today – well, Winchesters, it's time for you too see my home."
Sam and Dean had to blink as the glistening interior of the TARDIS appeared around them, and the light dazed them for a moment.
"Oh, you've redecorated!" Four exclaimed.
Eleven, who had raced to the TARDIS console to assist Sherlock, looked up at his past self expectantly.
"It's quite charming!" Four said, before approaching the console and helping his future self and the consulting detective fly the ship.
"It's nice to see you boys again," Sherlock said, looking at the Winchesters.
"Sherlock Holmes?" Dean said, shocked.
"You know each other already?" Four asked.
"We met when our dad was staying in Gotham." Dean elaborated. "Now, what the heck is going on here? Who is this guy?"
"I said that I change bodies," Four said. "He's one of my future selves."
"I'm a Time Traveler." Eleven said, as he raced around the TARDIS console. "Sometimes - not often, because this isn't supposed to be happening at all – sometimes I meet myself. So, scarf boy, what are you doing here? Do you have any idea where you are right now?"
Sherlock, Eleven, and Four stepped away from the controls at that moment, as the TARDIS achieved stable flight; the control column bobbed up and down in a very contented sort of way.
"Well, I was planning on going to Techadon In order to get K-9's accuracy circuit upgraded," Four said, "and I ended up here instead. I presume that the Time Lords want us to go do something-"
"That's not likely," Eleven said nervously, particularly since Sam, Dean, and Sherlock had noticed has hesitancy. "I don't think it's possible that your TARDIS just happened to randomly materialize here. Something pulled your TARDIS into this dimension."
"Whatever it was that caused the rest of us to meet in the first place," Sherlock said flatly.
"We need to compare notes," The Eleventh Doctor said.