//Author's Note: What does everyone think so far?! :D I hope you're all liking my story :3//

Sam, Dean, Sherlock, and John walked down Baker Street to the source of the problem. Sherlock motioned to a completely ordinary building wall and said, "look."

The men stared for a good 2 minutes before Dean gave up.

"Is there something I'm supposed to be seeing?"

Sherlock rolled his eyes. The sun was just going down, and Dean checked his watch.

"Any time now." Dean grumbled.

"Dean, why are you staring at a wall?"

"CAS!" Dean was, once again, startled by the angel appearing from nowhere.

Dean shook his head. He was about to explain, but Sherlock held up 5 fingers, slowly counting down.

"It does this every night," he said to no one.

Four.

Three.

Two.

On one, a great white light appeared and blinded the boys. Castiel thought quicker than anyone there, grabbing both Winchesters by the neck and forcing them to the ground as something huge shot out of the light. It skidded and crashed not far away. Sam had felt it brush his hair.

Sherlock was on his feet in an instant. "That was new...," he said.

There was a large box lying on its side, that disappeared, and reappeared seconds later-standing upright-with the sound of grinding metal.

The doors swung open and a tall man stepped out. He was skinny and strange, with long hair and a brown jacket. He was doused in soot and dirt, looking winded from crashing from the light source. The light still glowed behind them, oddly shaped on the wall of the building.

The man stepped out. "WHOO! What a rush! Haven't landed that hard since--" He seemed to notice the men lying around. "Oh. Hello. I'm The Doctor." He lost the excited aura and tried to look professional.
"I see you've all met the TARDIS. Sorry about the landing, just rode her through a Crack in time... she doesn't take well to that. Also, where are we? Last I checked we were near Jupiter, but now... London? London when? Ah this is--"

CRACK went Dean's fist against The Doctor's jaw. It was enough to send the strange man stumbling backwards into his box. Dean pulled a gun.

"You've got five seconds to explain why we shouldn't shoot you right now, when you're going on about time travel and cracks in time. You an alien, or just psycho?"

The Doctor quivered, then began to chuckle. "If there's on thing you need to know... I am definitely just a madman in a box."

The Doctor next woke up tied to a chair in his TARDIS with a very angry Dean to deal with.