Everything was dark. It was bad night Robin was on the losing end of a fight with Joker's crow bar. The only good thing was today there was no Joker Gas. The Boy Wonder was slowly waking up. He could hear voices.

"Is he alive?" a voice came.

"Poke him," came another voice, followed by a poke to the side. The poke hurt due to sore ribs.

"He's so small and cute, can we keep him?" came a third voice looking over at the boy.

"Mikey are you an idiot? He could try and kill us!" came an aggressive fourth voice.

Dick tried to gather all the information that was going on. There were four voices. They hadn't tried killing him, yet. His head hurt, so did his ribs and arms.

"Aw but look at him Raphie, he has on a cute little outfit and a mask. Look he even has a cape! Can we get capes? " Mikey asked looking over Robin's dark red and black jump suit. It was complete with a black cape that was lined with yellow. The right side of his jumpsuit also held a 'R'.

"Shut up Mikey!" came the other three voices.

"We don't know where we are," the second voice spoke again.

"He's hurt badly," came the first voice bending over the costumed vigilante.

"Can you treat him Don? I don't want to leave him like this."

"I can try Leo," Don replied looking over the boy in front of him assessing his injuries.

"He could try and kill us! I'd say we leave him," the aggressive voice came.

"He's just a kid, Raph we can't just leave him here."

Dick edited the information. He now knew their names. None of them sounded familiar. They wanted to help him, but they didn't trust him. The human boy slowly opened his eyes to see three turtles standing over him and a fourth with his back the others. Robin blinked a few times. He was hallucinating, mutant turtles? Dick reached his hand up to touch his head. His head is what hurt the most.

"He's awake," Leo said. Robin tried to focus his eyes on the speaker. He was a shamrock green turtle with blue eyes, which matched his blue mask.

Robin tried to scurry away. It hurt to move.

"It's okay buddy," said an olive green turtle with brown-ish red eyes and a purple mask. "We're going to help you." He gave him a gentle gapped toothed smile.

"Yeah! We're nice turtles!" came the chipper voice of the one who wanted to keep him. The one called Mikey. He was lime green with darker green freckles and wore and orange mask. That would make the dark green one with the red mask Raph.

Robin rubbed his head again. This was all a crazy dream. It had to be. Talking turtles? Not even in the circus was that possible. He began to question if this was an effect from a new gas from the Joker. He felt himself being brought up into a sitting position.

"We can help you, if you can help us," Leo said looking the raven-haired boy in the eyes.

"What do you—" Dick winced slightly as Donnie tried to clean up the injury on his head. "—do you need?"

"Pizza!" Mikey said cutting off Leo; Raph quickly pulled him back. Even though it was quick, Robin made his final assessment of the turtle in the red. He had green eyes and his plastron was chipped.

"Can you tell me where we are?" Leo asked.

"Shouldn't you know that?" Robin countered. Leo hesitated.

"Any more injuries?" Donnie asked seeing the boy shift uncomfortably.

"Ribs…arms…" He humbled before finishing talking to Leo. "Look you better start explaining things. It won't be long before Batman comes for me." Truth was he want even sure if Batman was coming. He was off world and Dick was in Gotham for school when there was a Joker sighting. He took upon himself to check out. In the end the idea was not well thought out.

"A man who's a bat?" Leo said.

"No that's someone else." Dick said dismissively. "Batman. You don't know who he is?" He shifted again as Donnie touched a broken rib, "oh yeah that's re-broken…" he mumbled.

"Listen kid we don't even know where the hell we are let alone who this Man-Bat is," Raph said getting annoyed.

"Batman," Robin corrected him. "Like I said Man-Bat is some else."

"Yeah, yeah, yeah whatever. So who does that make you?" Raph said.

"Robin. Who are you?"

"I'm Leo," the leader in blue said. "That's Raph in the red, Donnie in the purple, and Mikey in orange. We don't mean any harm. We some how got transported here."

"It was all Don's fault!" Raph snapped.

Donnie choose to ignore Raph. "Where ever here is," he chimed in. "Let me see your arms."

Of course when Leo introduced them, he had guessed who they were. It was good to know he was right on deducing who they were. Leo (who was clearly the leader) said they didn't mean any harm, but they did have weapons. Leo had twin katanas, Raph twin sais, Donnie simple bo staff, and Mikey a pair of nunchucks; all weapons of a ninja. That made mutants ninja turtles?

"They're just bruised." Robin looked at the mutants. He didn't know if he could trust them, but information he was feeding them was basic. They did seemed to genuinely care if he was okay "Then welcome to Gotham."

"Got ham?" Mikey said. The other turtles chose to ignore one in orange.

"Gotham. Where are you from?"

"New York City," Leo replied.

"And you haven't heard of Gotham?" Robin was growing skeptical. Gotham was fairly close to New York, so it was strange they had not heard of it.

"Well it's possible the portal brought us an alternate dimension." Donnie offered thoughtfully.

"We were in New York when we were sucked up by a portal and then we fell onto a rooftop here. We didn't know where we were so we looked for a place to hide until we figured out where we were. That's how we found you," Leo explained.

"Yeah the stupid portal Donnie was building!" Raph added.

Portal? Robin thought to himself, a Zeta-Tub? But how would they have gained access? Donnie built one? "Did you see anyone leaving? Clown, white face, green hair, large red smile, nasty yellow teeth…crowbar."

"No, it was just you," Leo said a little creped out by the description he gave. The crowbar would explain the boy's injuries.

Robin heard Batman talking in his earpiece. Figured he'd know something was up. He touched his finger to his ear. The turtles didn't know whom he was talking to or what was being said on the other end. All they head was Robin responding. "Yeah I'm okay. I think I'm going to head back to Mount Justice. Okay. Bye." Robin looked up at the turtles. "This city isn't the safest. We will need to find a place for you to stay. I'm sorry I can't help with that. My guardian wouldn't take well to giant turtles. This place isn't safe either. Joker could come back."

Leo was complying his own list of notes on Robin. First he saw uneasiness in Robin as he mentions 'Joker' it was the same reaction he had when describing the person he could have been leaving. It must have been who hurt him. Second he said guardian not 'father' or 'mother' either was he trying to be elusive or was he an orphan. Third, was his belt, he didn't know what was in it, but no one carries around a utility belt for no reason.

"Just help us to a sewer, we can find a place from there," Leo said.

"Let me find a safe area," Robin said hoping his wrist computer was safe from Joker's crow bar. Luckily it was and he brought up a holographic map. The sewer was strange request, but where they come from it must be familiar to them.

"What the! That's so cool!" Donnie said. "Is that a holographic map? And you keep in in your gauntlets? How do you do it? Can you show me?

"Dude what is that?" Mikey asked poking the map. He discovered his hand could go clear through the map he kept doing it until he got a glare from the small boy. Mikey stopped what he was doing and slipped nervously behind Raph.

"It's a holographic map," Donnie explained. "It's a technique that allows a light field. It uses lasers…" the over excited turtle started to explain how a holographic work to no one. The other turtles were all looking at Robin's map of Gotham's sewer system looking for a place to lay low until they would find a way home.

"This place looks good," Leo said pointing to a location that happened to be near the Zeta-Tube system, not that the turtles know that. It would make it easier for Robin to help them being near a Zeta-Tube.

"Follow me," Robin said taking off without another word. If they were truly ninjas then they would follow him with no instructions. He was testing them. He wanted to see their abilities. Once outside the warehouse he raised his grappling gun and fired. The turtles watched as he skillfully used it, then pulled out their own low-tech grappling hooks.

"Are we trusting this kid?" Raph questioned Leo's blind faith in a human they just met.

"He seems to have an honor code. We helped him, so he is helping us. We have to choice but to trust him," Leo responded.

"In the end there are four of us and one of him," Donnie added and the leaped after Robin.

"Also that Batman dude," Mikey added in.

The four turtle brothers caught up with Robin who was waiting for them on a rooftop. Robin pointed down to the alleyway. Then he acrobatically jumped and back flipped his way down to the back alleyway using the fire escape as a springboard. Robin landed skillfully on his feet in front of the broken Zeta-Tube that was used to get the member of the Justice League of America and their sidekicks around country. Robin wasn't going to tell them this information.

The turtles landed next to him. Raph bent down and removed the manhole cover. After he removed the cover he jumped down followed by Donnie and Mikey. Leo remained in the alley.

"You next," Leo instructed, he doubted the skinny boy would close the heavy manhole cover. Robin nodded and he was he was told. Leo quickly followed him. Once they were all in the sewers Robin lead the way to a broken down subway station. They all walked in silence. Leo and Donnie were making mental notes as they walked, Raph just followed because what else could he do? Mikey was bringing up the rear pouting because he discovered Robin was slightly taller than him.

"Let me hack into the power grid and get you lights down here," Robin, said going over to the power box and inserting a wire from his computer. Donnie excitedly watched. After a few minutes of clicking away on his holographic wrist computer the lights came on.

"Thanks," Leo said bowing slightly.

"No we can talk better without risking anyone hearing us," Robin said.

"We told you everything," Raph snapped.

"What we said back at the warehouse was the truth," Leo said.

"There's no way you can prove it," Robin said.

"There is one way," Donnie said. "We go to New York and see if our lair is there."

"Once again your cannot prove it. You can go to the wrong location and lie," Robin was growing skeptical.

"Listen kid we aren't lying to you. That's not the way we were raised. We really got sucked up here. A bright white light appeared from this thing Donnie was working and sucked us up. Then it opened up and dropped us here." Leo explained. He was hoping Robin would trust him; even if Leo was not quiet sure they could trust Robin.

Dick tried to get a good read on him. He looked him in the eyes. His instincts were telling him to trust them, but all his training was telling him not to.

"What 'thing' did Donnie build?" Robin said using air quote.

"It's trans dimensional portal I was building. Maybe we went back in time, or forward rather then enter another dimension." Donnie said. "There is no way everyone in the country can know every city, so it's plausible we just haven't heard of Gotham. We don't get out much. What date is today?"

"It's October 10th, 2011," Dick stated.

"Well that's way off," Donnie said. "It was December 1th, 2012 for us."

"If it's 2011 then Splinter will be mad we are topside," Mikey said.

"Why?" Robin said taking advantage of the aloof turtle.

"Because we were only allowed out of the sewers last month…well in 2012…last month in 2011 we weren't allowed out. So wait are we in trouble?" Mikey asked.

"In trouble?" Robin said quickly before his brothers could answer him.

"Yeah Splinter said we aren't ready. Well back then…this is making my head hurt!" Mikey said holding his head.

"Then stop talking!" Raph snapped hitting Mikey upside the head.

"Aw but we can trust him!" Mikey smiled brightly.

"Who's this Splinter person?" Robin asked hoping to get answer now that Mikey claimed he openly trusted them.

"Our teacher," Leo explained. He wanted to prove they were trust worthy.

Robin crossed his arms. There was still no reason for them to be lying to him. The five teens began to ask more questions to each other. Questions ranged anywhere from pop culture to science and beyond. Leo was disappointed to learn that his favorite television show (Space Heroes) did not exist in this time line. Donnie on the other handed was excited by elements he never heard of the advances in science and technology he's never heard of. Mikey was just happy there was still pizza.

It was discovered that according to their own time lines they roughly the same age. Robin was fourteen here in 2011 (turning 15 on December 1st) and the turtle brothers were fifteen in 2012 (they turned 15 on September 29th)

It was clear Leo was already trusting of Robin. Leo saw the good in people so it was naturally easy for him. Robin was slowly starting to trust them more, but was still skeptical.

Once they were done talking, and trust was established Robin told the turtles he had to go. He did promise to come back with food for them.

"Don is there anyway you can find away out?" Leo asked.

"With out Robin helping? I don't think so I don't have a computer or access to the supplies I used to build the portal," Donnie said, "I'm not even one hundred percent sure they have what I need here."

"Just great, so we can't back home. And we decided we are going to trust this Robin kid?" Raph said.

"We have to," Leo said. "Who else would help us? We are still mutants."

What do you think? This is my first cross-over so I hope I did at least at okay job blending them. I also tried to explain things incase one of my followers has only read/seen one of the fandoms.

So drop a review to let me know what you think of this first chapter. It may be a little slow going, but there will be more.

Thanks for reading!