Disclaimer: I don't own the rights to supernatural or doctor who.

Note: What happens when a minor case of ghosts turns out to be the evilest creature in all existence? Who's these two people that just drops into Sam and Dean's lives? This is a Supernatural Doctor Who (Matt Smith era) crossover. I've been waiting to write this for days!

Earth 2010

"Okay, I think I've got a case." Sam said to Dean. He showed Dean his laptop. "There have multiple sightings of ghosts in this crypt. Wails are heard, but get this; they're heard only in the walls."

"The walls?" Dean asked. "So, like what? They stick their ears to walls?" Dean laughed.

"Uh, yeah. Sounds like a job. You wanna check it out?" asked Sam. They haven't had a case for a long time now, nothing really screamed supernatural.

"Let's go." Dean made the Impala purr.

TARDIS

"You said you'd take me to a planet!" whined Amy Pond. She tinkered around the consol.

"I did! I took you to Earth, didn't I?" the Doctor replied. "Don't touch that." He bit Amy's outstretched hand.

"Ow! Not with your space teeth!" Amy held her hand. "I've been to Earth many, many times! You promised me an alien planet!"

The Doctor studied her for a minute. "Fine. Hold on." The Doctor pressed a button and he and Amy were yanked to the floor. "Geronimo!"

Earth 2010, Cemetery

"There's the crypt." Sam and Dean were ducked behind a bush. "I don't see any ghosts."

"That's because they're in the walls, Sammy." Dean rolled his eyes. "Ready?" Dean cocked his gun and Sam did the same. He and Sam scurried to the entrance of the crypt. He signaled Sam, but before he could pick the lock, muffled voices were heard.

"No, no, no. This is not Earth, I tell you! This is uh, Clom!" a male voice said. Dean looked at Sam.

"This is Earth, you bow tie wearing freak!" a shrill female voice replied.

Sam and Dean decided this was the time to intrude, after all they we're intruding in ob their case! Dean kicked the door down and Sam rushed in pointing his gun at the two intruders.

"Whoa, hey!" shouted the girl. She was dressed in short shorts, a red shirt and a scarf. She had brilliant red hair and pale skin. But, she was all legs, very slim and tall. "Who are you?. . . .Ah! See, they're human! We're on Earth!"

"Yes. We are. I lied. Who are you?" the man asked. He was wearing an odd brown, tweed jacket, a beige shirt and a bright. . . .bow tie?

"Who are you?" insisted Dean, Sam never lowered his gun from the man.

"Ah, right! Where are my manners? Hello, I'm the Doctor. And, this is Amy Pond. Now, who are you?" said the Doctor.

"I'm Dean, Dean Winchester and that's Sam." He pointed to himself and Dean.

"Ah, nice to meet you, Dean Dean Winchester! Hello, I'm the Doctor!. . . .Oh, didn't I just say that? Well, I told you twice so don't forget my name! Oh, and that's Amy! I said that already too!" the Doctor rambled. Sam and Dean just stared at him. "Anyway, big thing, big thing right now. Life and Death situation. So listen very, very closely." Sam and Dean looked at each other and stepped a little closer to the Doctor and Amy. "Put that gun away or you will face me, the Doctor the Oncoming Storm. " The Doctor stated in such a manner, Sam and Dean shrunk back. Then, the Doctor smiled. "Pretty please? I hate guns."

Sam looked at Dean then lowered his rifle. "Sorry. So what are you guys doing here? Hang around in cemeteries much?" Sam asked.

"Me? Oh I love too! But, I was just walking through and found some fascinating Gelth hanging around here. I got rid of them, if you don't mind." The Doctor said.

"Wait, wait, wait. Gelth? What's a Gelth?" Dean asked. "Didja mean ghosts?"

"Oooh! Can I say it?" Amy squealed. "C'mon!" the Docor nodded. "Gelth are creatures made of gas, they lost their corporeal bodies in the time war. They need corpses to possess, hence the crypt."

"And, how do you know what they are?" Sam asked. "Are they demons?"

The Doctor laughed. "No, no! They're not demons of this world! You would call them. . . .aliens."

"Aliens?" Dean scoffed. This man was absolutely mad.

"Yeah, aliens. Got a problem with them?" Amy asked.

"Nope. We're hunters. We've seen a lot of things. Aliens? Bring them on, Red." Dean replied.

"Red?" Amy asked, confused.

"I'm gonna call you Red."

"Oh. Okay, can I call you Deanna?" Amy smirked.

"I need to go to the TARDIS really quickly. Do you remember where I parked her?" The Doctor said and left the group.

"TARDIS?" Sam asked. "What's a TARDIS?"

"Come and see!" shouted the Doctor.

. . . . . .

"I love the Earth at night! You can see all the stars!" sighed the Doctor. Amy and the boys followed closely behind.

"Can we trust them?" Sam whispered to Dean. Hunters rarely trusted anybody but family.

"'Course you can trust the Doctor. I trust him with my life. He's the safest person to be around." Amy winked. Sam and Dean looked at each other.

"I know that look in your eyes." Sam hissed. "The look when your hunting a girl you want. You can't go after Amy! She's like with the Doctor!"

"Never stopped me before." Dean smiled back. Suddenly, the Doctor spun around and his eyes went wild looking around the outside of the crypt.

"Okay, big question! Very, very, big, huge, question." The Doctor focused on each of their waiting faces. "Amy. What's missing from this picture?" The Doctor motioned to the front of the crypt. It was made of cracked bricks and had white marble flooring. Vines climber every which way on the walls. Amy stared at the crypt's entrance for a second before her eyes bugged out of her head.

"Oh." She gasped and grabbed the Doctor's arm. "Doctor. . . ."

"I know." The Doctor whispered. "Dean Dean Winchester, most important question you will ever hear in your life. Was there a stone angel outside of this crypt when you came in?" the Doctor deeply studied Dean's face. He waited anxiously for an answer.

Dean was stumped. He tried to think back, it was dark. . . . "N-No. There wasn't a statue." The Doctor closed his eyes and Amy looked terrified. "What?" Dean wondered what made their two new companions look so afraid.

"Looks like you've got a Weeping Angel on your hands." The Doctor said gravely and rushed forward.