Hey guys! I've always wanted to combine my two favorite things, Doctor Who and Avengers. I've been thinking about doing this fanfic for a while and I've finally decided to start it! So, here goes!

I do not own the Avengers or Doctor Who, although I wish I did. :)

Stark Tower, New York City

"I love what you've done to the place!" Jane exclaimed as she stepped out of the elevator with the others, her arm wrapped around Thor's. Steve Rogers exited the elevator last, shield in one hand and a black travel bag in the other.

Tony spoke. "Yes, well it was quite a project after reindeer games trashed it." Jane glanced up at Thor and saw the pain in his face. Even after a month and a half, Loki's death was still a sore spot for him.

"I –" Tony began. Pepper, holding a glass of wine, elbowed Tony in the ribs. "Ahem, I mean Pepper did most of the design. But still –"

Pepper cut him off. "Anyway, me and Jane are going to go see a movie and go shopping. You boys stay here and please try not to take out all of the windows this time."

"I'll make sure to leave at least one," Tony said sarcastically as he kissed Pepper on the cheek. She rolled her eyes. Jane gave Thor a quick hug and then stepped back into the elevator, joined a second later by Pepper. She pressed a button and the doors slid shut, leaving the three men alone together.

"Why must you carry your shield everywhere with you?" Thor asked Steve.

"Well, unlike you, my shield does not come to me at my leisure." Rogers sighed. "Lately, S. H. I. E. L. D has been calling me out at all hours to do things, so I've been keeping it with me whenever I can."

Tony sauntered over from behind the bar with a glass of wine in his hand. "So, I'm assuming Mr. Stretchy Pants couldn't make it?"

"No, Bruce had to pay a visit to NASA. Something about a test launch."

"You mortals amuse me sometimes," Thor chuckled. "Why you would use such primitive devices to move through space is beyond me."


Asgard

Loki was bored. He had craved power all his life, but now that he had it, he realized that it wasn't as glorious as he had previously believed it to be. The realms were currently at peace, having united against the Dark Elves, and there was nothing to entertain him than small disagreements and petty thefts within Asgard. Maybe I should start a war, he thought. That would definitely be more interesting than just sitting up here doing nothing.

Still bored, he decided to turn his attention to Midgard, for from Odin's throne he could see everything in all of the nine realms. He'd found himself doing this a lot lately, mostly to watch what had happened to his little project in New York. Oh look, it seems that they've finally finished rebuilding Stark Tower . . . Suddenly, a mischievous grin crept across Loki's face, looking a little out of place among the Alfather's wrinkles. In the newly rebuilt penthouse of Stark tower was none other than his brother and two of the mortal "Avengers" he associated with. An opportunity like this was just too good for him to pass up. Plus, if he got Thor mad enough, he might just start that war for him.

Not wanting to alert Heimdall sooner than necessary, Loki decided to skip the bifrost, then made himself invisible and teleported himself straight to New York.


Stark Tower

"So, Terminator or Star Trek?"

The other two men gave Tony blank stares. He rolled his eyes. "Great. I end up having movies night with an alien and an artifact." Steve raised his hand to speak. "And no, Stripes, we're not going to watch the Wizard of Oz." Rogers put his hand down.

"Why don't you make that two aliens and an artifact."

Thor froze. He knew that voice. But, it couldn't be . . .

" . . . Loki?"

Loki materialized in front of him. "Hello, brother."

Rogers jumped back, grabbing for his shield. Tony began shouting at Jarvis to get his suit. Thor just stood there, trying to comprehend what he was seeing. Loki turned around to find Stark with an arm of suit on, hand pointed directly at his face.

Loki grinned, "Well, this is a warm welcome."

Thor spun his brother around to face him, grabbing Loki roughly by the shoulders. "How are you still alive?!" he demanded. Thor's mind was reeling. My brother is alive! How? "I watched you die in my arms!" he roared, voice shaking with emotion, shaking the trickster violently by the shoulders.

Loki smirked, "You almost seem disappointed. You would think that after all this time you would have learned to recognize my illusions by now." He stepped back out of his brother's grasp and changed himself into . . .

. . . Odin! Thor's eyes go wide. With a sudden fury, he grabbed the image of the Alfather by the collar and slammed him against the wall. "What have you done, Loki?" he whispered, barely containing his rage. Loki grinned impishly. To Thor, it looked hideously wrong on his father's face. Using his magic, Loki made blood appear on Odin's neck, spurting out and gushing down onto the Alfather's robes and armor.

"NO!" Thor bellowed and smashed Loki's head against the wall, causing him to change back to his natural from. Thor thrust out his arm, and a second later Mjolnir came smashing through one of the penthouse's floor-to-ceiling windows and into his outstretched hand.

"Pepper's gonna kill me," Tony muttered. He whispered something to Jarvis who was now in his earpiece. The remaining pieces of his armor came flying to him from within a normal looking closet, taking out a chunk of the bar in the process. Rogers was already leaping toward the pair of gods, shield in hand, preparing to join the fray.

Thor brought his hammer down on Loki. Seeing the blow coming, Loki dodged quickly to the right, escaping Thor's fury by mere inches. Mjolnir slammed into the floor, ripping the rug and cracking the concrete beneath. Thor brought down the hammer again. It crashed into Loki's chest . . . and passed right through the illusion.

"I've got him!" Stark yelled. Thor spun around to see Tony, now in full armor, with his arms wrapped around his brother, struggling to keep the trickster in his grip. Rogers was crouched a few feet away, ready to spring into action once Loki broke free. Thor stormed up to his brother, grabbed him by the throat and raised Mjolnir above his head. Recognizing that he couldn't win at that point, Loki stopped struggling. Putting on the most infuriating smile he could, Loki lifter his head and looked his brother in the eyes.

Thor was breathing hard. "Loki, you –"

He stopped. Behind him, a strange noise had started. He looked up at Tony, giving him a questioning glance. The billionaire had put up the faceplate on his Ironman suit and was staring in awe at something taking place behind the thunder god. Glancing over at Steve, he could see the he was equally amazed by whatever was making the strange noise. Even Loki looked impressed.

"What, what am I . . ." Thor turned around to witness a large wooden box appearing out of thin air in the center of the flat. Tony let out a long slow whistle. "Materialization . . ."

They all stood there for a moment, staring in wonder at the strange blue box, their ordeal momentarily forgotten. Rogers came back to reality first. Reaching slowly into his bag so as not to alert Loki to his movement, Steve grabbed two pairs of cuffs. The next thing Loki knew, his hands were shackled together, followed by his feet. He tugged at them, expecting the metal to break easily.

"Don't even try," Steve told him. "Those things are almost as solid as my shield. Almost."

Stark dropped Loki roughly to the ground and slowly approached the peculiar blue box now standing in his living room. It seemed to be about ten feet tall and had double doors on one side. He tried them. Locked. On the roof of the box was a light. Above the doors hung a black sign: POLICE PUBLIC CALL BOX.

"Is this one of yours?" Thor asked his brother, gesturing to the police box.

"If it was, why would I tell you?" Loki retorted.

"I think I've seen something like this before, when I was travelling around during the war," Steve mentioned. "It's some sort of telephone box, except for the police."

"Whatever it is, it just materialized in my living room, so it's probably not friendly," Tony replied.

"Right, defensive positions," Rogers commanded. "If or when someone comes out of those doors, we don't want to be caught off guard."


The TARDIS

"Doctor, where are we?" Clara asked. She was wrapped in a black sweater and had had a cup of tea in her hand.

"Erm, I'm not quite sure actually," the Doctor replied from the other side of the control console. He danced around to the opposite side, flipping the odd switch or pulling a random lever here and there as he went. He grabbed a monitor, only to slap it with the palm of his hand and push it away again in disgust. "Nothing is picking anything up! I knew we shouldn't have flown through that wormhole!"

Clara smiled, "Well then, I guess there's only one way to find out where we are then, isn't there?"

The Doctor smiled back, brushing his finger against Clara's chin, "Let's go have a look then, shall we?"

Together they ran to the TARDIS doors, Clara trailing slightly behind the Time Lord. The Doctor threw open the doors . . . and stopped.

"Doctor?"

"Clara, I want you to put your hands above your head and slowly walk out behind me," he whispered, face suddenly serious. Knowing better than to question him at this point, Clara did as she was told. She emerged from the TARDIS behind the Doctor to a strange sight. They had materialized into an expensive looking living room. In the room were four very different looking men. One was somewhat muscular with short brown hair, holding a round shield with red and blue rings surrounding a white star on it. The second was wearing some kind of metal suit and was pointing his hand at them with some kind of glowing laser cannon on the palm. The third was a rippling mass of muscles and golden hair. He was wearing some kind of old style armor with a long red cape. He held a threatening-looking hammer in his right hand. The fourth man was behind the other three, wearing handcuffs on his wrists and ankles. He was wearing clothing similar in style to that of the blond, but his was green and gold, and his long black hair reached down past his shoulders.

"Don't shoot, we are unarmed," the Doctor began, slowly bringing his arms down. "Well, unless you consider this a weapon." He snatched his sonic screwdriver out of his inner coat pocket. Before any of the men had time to react, the Doctor pointed the device at the man in the metal suit. The green light at the end went on accompanied by a buzzing noise, and the man's suit went dead. The Doctor spun the screwdriver in the air, caught it, and placed it back in his pocket.

The Doctor rubbed his hands together, "Well then, now that we're not pointing glow sticks at people, let's have a look around, shall we?"

He wandered over to the windows and peered outside. "Now let's see . . . Oh! We must be in New York! Look, there's the Empire State Building," he said to no one in particular, pointing to the famous skyscraper. "I haven't been back here since . . ." he trailed off. "Well then, this isn't that New York anyway."

"What do you mean, Doctor?" Clara asked, joining him at the window.

"Look over there," he instructed. "There's obviously been some sort of battle here, and judging by all the damaged buildings this was not done by human hands. No . . . some sort of alien invasion. Humans aren't advanced enough to build the kind of technology to make damage like that. And judging from the places of damage, they must have been flying machines – no, not machines, hybrids! Part alien, part machine, most likely metal armor, and lasers, lots of lasers –" He spun around to face the metal covered man. "Like you! Well, not like you, you're still human! Just covered in all this fancy metal. You know, you really should have used something other than metal, it can be quite unreliable, especially against sonics. No, of course you wouldn't, you haven't seen one before now have you?"

"Ahem." Clara stopped him before he got too far into his rant. "Why don't you at least introduce us?"

The Doctor stopped waving his hands around. "Ah, right. Well, this is Clara " he gestured to his companion, "- and I'm the Doctor."

Hope you guys like it so far! The next chapter's going to get interesting. Updates should come at least once or twice a week, considering I'm writing two fanfics at the same time. Please leave lots of reviews and let me know what you think about the story so far! I'm always open to plot suggestions. Also, if you ever find that I've gotten any of the details wrong, please correct me so I can fix it!