A/N Here is another chapter! I am really excited to share this one with you guys. I can't believe that tonight is the series finally for Supernatural but I'll be watching it live. Please favourite, review, and point out any spelling mistakes or grammatical errors. Enjoy!

Big Brain Motel

Sam and Dean opened the door to room 216, Cas' room. They had gotten there too late to get a room of their own and Cas had done some research on the Doctor. The Winchesters threw their bags on the floor and walked up to what would have been a blank wall but instead was covered with information about the Doctor. Most of it was articles about a mystery man saving people, usually in England. There wasn't even a good photo of the Doctor or a consistent one for that matter.

"When Cas said he was doing research he wasn't kidding," Dean said, still reading what Cas had put up, unaware that Sam had walked over to the small table in the corner and pulled out his laptop. Dean kept on looking over the articles pinned to the wall, some of them were 40-year-old yellowed newspaper articles that were poorly scanned, "How old is this guy?" Dean mumbled to himself but Sam heard him.

"I dunno, Dean. There are so many search results but most of them are about actual doctors." Dean looked at the wall once more and a headline caught his eye.

"Search for the Doctor in UNIT."

"What's UNIT?"

"I dunno, but it's in a few of the headlines and mentioned in a ton of articles." The room was plunged back into silence except for the keystrokes on Sam's laptop.

"That's odd, this says that someone named the Doctor worked at UNIT in the 1980s. That would make this Doctor at least 60 and he doesn't look 60."

Dean was silent for a moment remembering how old the Doctor's eyes had looked when Ms. Stien lashed out at them, "In our line of work looks can be deceiving, Sammy."

"You're right, I'll keep on digging."

"And I'm gonna take a nap and wait for Cas to call," And with that Dean jumped onto the nearest bed and closed his eyes.

The Crockets

Cas was staking out the Crockets' house just as Dean had asked, waiting for the Doctor to come and kill Mr. Crocket. However, the Doctor was also staking out Mr. Crocket's house from the shadows of the catwalk. Cas and the Doctor had been waiting outside of Mr. Crockets for an hour or so with no sign of anything hostile approaching the house. Then all of a sudden the door opened.

"Where do you think you're going, Jimmy?" Dotty called from inside the house.

"I'm just going for a walk for the fresh air," Jimmy called back then let out a cough.

"You're going to make yourself sicker."

"Fresh air is good for the lungs, love, besides I don't want to get you sick."

"Jimmy, you always have my best interests at heart, be quick Jimmy or dinner will get cold."

"I'll be quick, don't you worry!" Then Jimmy stepped outside and closed the front door. He shivered a little bit then started walking towards the catwalk. The Doctor quickly moved through to the other side of the catwalk and hid behind a pine tree near the mouth of the catwalk. Cas, on the other hand, could not follow Jimmy in his car and he had a bad feeling. He pulled out his phone and called Dean.

"Cas is he there?"

"No, Jimmy is headed towards the park and I don't like it."

"Okay, Sammy and I will go to the park right away," Then Dean hung up the phone.

Cas got out of his car and followed Mr. Crocket through the catwalk.

Big Brain Motel

"Sammy let's go," Dean practically shouted at Sam.

"Cas saw the Doctor?"

"No, Jimmy is heading towards the park and Cas doesn't like it."

"Jimmy said it was in the park when he saw the Doctor."

"Let's go gank the son of a bitch," Dean said grabbing the keys for his Impala off the nightstand.

Park

The Doctor stood behind the tree waiting for Mr. Crocket to come out of the catwalk, from where he was standing he could see the alley where the TARDIS was parked and the bench he had sat on earlier which was now occupied by a man and a woman, it was hard to tell in the dark. He could hear some of Mr. Crockets coughs coming from the catwalk, he clearly wasn't feeling so good. Mr. Crocket came through the catwalk and paused for a moment taking in a deep breath.

"That wasn't so bad," He mumbled and continued walking. Then Castiel walked out of the catwalk sticking to the shadows, not noticing where the Doctor was hiding. The Doctor wanted to focus on Castiel and figure out what he was but Mr. Crocket's life was at stake so he would figure out what Castiel was later. The Doctor watched Mr. Crocket intently as he sat down on one of the unoccupied benches and stared out into the empty field. He began to cough again, then shiver... he hated being sick but what was even worse was Dotty fretting over him when he was sick.

Cas turned to look at the road when he heard the Winchesters' Impala pull up behind a cop car. Cas walked over to a light post where he was barely illuminated and the Winchester brothers walked over to him.

"What's up Cas?" Dean asked.

"That's Jimmy Crocket over there," He said pointing to the bench Jimmy was sitting on, "He has gotten worse since we last spoke to him."

"Like gotten sicker? We only spoke to him a few hours ago," Sam said and Cas just nodded.

Sam, Dean, Cas and the Doctor all jumped at the sound of two car doors slamming shut very loudly, they all turned to look and saw two cops walking over to Jimmy who was having another coughing fit. Sam, Dean, and Cas moved in closer to hear what was being said while the Doctor fumbled to get his non-human detector out of his pocket.

"I thought you said it was supposed to last longer this time," Jimmy said although it didn't sound like Jimmy.

"It was," One of the cops said, "Maybe some of the frequencies are off or-"

"I don't care what wrong, just get me out of here!" Jimmy shouted then went into another coughing fit.

"Jimmy?" Sam asked approaching him, Dean and Cas had fanned out, "Are you okay?"

"Winchester," Jimmy said then his eyes turned dark violet. Sam jumped back as he had never see demon eyes turn purple and Dean jumped forwards taking Jimmy to the ground. Cas now had his angle blade in his hand ready for one of the cops to attack.

"What are you?" Sam asked, pointing the demon knife at Jimmy.

"I'm a demon, Sam. But you already knew that," The demon said with a smirk then started coughing again.

"Sammy, what's wrong?" Dean asked.

"His eyes were purple, not black."

Dean just stared at Sam then plunged an angle blade through Jimmy's heart. One of the two cops that were standing there attacked Cas the other one pulled something that looked like a phone out of her pocket and pressed some buttons. Suddenly the two people that were sitting on the other bench were rushing towards Sam and Dean and a few other people ran into the park from different directions. As they closed in the Doctor noticed something strange, his non-human detector was beeping when pointed at everyone except for the Winchesters. Cas had finally killed the demon that was attacking him and Sam had stabbed the one with the cellphone thing.

"I don't like these odds Dean," Sam said as the demons drew closer holding strange weapons. The three of them were all standing back to back with their weapons raised.

The Doctor was still behind his tree, he didn't like these odds either but after hearing the word 'demon' he knew he needed help. The Doctor knew of demons but he had no idea how to stop them, so he needed the boy's help. He was also certain of one other thing, there were definitely aliens involved as well.

The Doctor, taking out his sonic screwdriver, ran from his cover straight toward the boys. It looked like the people attacking were holding cheap laser guns, which meant no deadlock seal. One of the attackers fired at him from the catwalk and the Doctor ducked just in time. He turned around, bleeped the sonic screwdriver and the laser gun sent sparks flying everywhere. The Doctor reached the park bench that Sam, Dean, and Cas were standing by and shouted, "Run!" as he blew past them. The other people had started firing at them and the Doctor had the only thing that could stop them so they followed him.

Dean tried to make a break for the Impala but there were at least three people in his way and there was no way they could hijack a car without getting shot. As they were running Cas was hit by a laser in the shoulder which left a big hole in his jacket and shirt. The Doctor led them into the alley across from the park.

"We're trapped!" Sam shouted.

"No, we're not!" The Doctor called back as he grabbed the TARDIS key from his pocket and opened up the doors.

"In case you haven't noticed that thing is made of wood and they have laser guns!" Dean shouted as the Doctor disappeared into the TARDIS, "And there's no way we'll all fit!"

"Come on!" The Doctor shouted from inside the TARDIS.

Sam stepped into the TARDIS to pull the Doctor out, "What the..." He said as he looked around, "Dean!"

"Come on Sammy. Just..." He didn't get to finish his sentence, he was surprised by the size of this wooden box. Cas followed Dean inside, concerned that he never finished his sentence. They all looked around in shock, completely forgetting what was going on.

"Son of a bitch," Dean muttered.

"Oi! Close the doors!" The Doctor shouted from the center console too busy pressing buttons to look up. Cas immediately turned around to close the doors just as a laser blast went by.

The sound of the doors closing was enough for Dean to come to his senses, he pulled out his gun and pointed it at the Doctor, "Who the hell are you?"

The Doctor looked up as Dean clicked the safety of his gun.