All of the sudden, the world went black for Bucky. He was still conscious, still could think, but all of his senses were gone. The moment Sin had shouted that word, sputnik, he'd lost sight and touch, smell and hearing. Taste was probably gone as well.

For just a second, Bucky thought he'd been trapped in his mind and immediately he began to panic. No, he thought. Not this! Anything but this!

He screamed but that did nothing. Whether he whispered or shouted it was all the same. Because thoughts don't carry volume. Because he was trapped.

Where was Steve? That was the most important thing at the moment. He'd seen him come into the room but after that he didn't know. Was he safe? What had happened to Sin? Where did she come from and what was her aim with Hydra?

Bucky waited for something to come back, to be able to feel the metal floor beneath him or hear his own breathing. He couldn't even feel his own heart beating.

And then it all came back on.

The sudden jolt of having his body in control caused his breathing to catch and his heart to stutter, a sudden rapid pace over taking it. It took him a moment to notice a voice in his ear.

"Barnes? Are you alright?" It was that one guy, Coulson.

"I…I think so. How long was I out?"

"Thirty minutes. Exactly. Is there—"

"Where's Sin? Cap?"

"I just sent to Cap that you're alright. He's down on the fourth floor. Is Sin that woman?"

"Yes. Where is she?"

"Tied up."

"Good," Bucky replied and then stopped, fully thinking about what Coulson had said. "This structure only has three floors."

"That's what we thought too but Natasha found a staircase that leads farther down. There are either no cameras down there or they are hooked up to a different location. I'm completely blind except for our lines of communication."

"Any hostiles?"

"None that they've reported of. No scientists either. Some of the equipment was smashed but not all of it. Whoever was down there left in a hurry. They were probably warned while the team cleaned up floors one through three."

"Where is Sin tied up?"

Silence.

"Where is Sin tied up, sir?"

"A8, two hallways over," Coulson said, reluctance clear in his voice. "Remember, we need her alive Barnes."

Bucky didn't respond to that. He hated how the man had automatically assumed that he might kill the woman but to be truthful, he had been contemplating just that. He moved down the hallways until he reached her. Steve had done a fine job, the woman just barely having the ability to wiggle back and forth.

"Ah, so you're finally awake," she muttered. Bucky noticed the dried blood in her nose and the developing bruise on her face. She gave him an analyzing look and then suddenly shouted, "Sputnik!"

Bucky flinched but this time it did nothing.

Sin sighed. "I guess it does work only once. Too bad. Watching you fall flat on your face would've been funny right now."

"What was that? What did it do to me?" Bucky asked softly.

"You're no fun. Just going straight to the point. It was basically a safety switch if you went rogue. Only works once though and then it has to be reprogrammed into your head again."

"So it won't work ever again."

She gave a malicious smile. "Not if we don't get our hands on you again."

Bucky clenched his fists, resisting the urge to add another bruise to her face. "Who sent you?"

"Funny, the one in the spangly uniform asked me the same thing. I told him but he didn't seem to appreciate the answer. Knocked me straight out."

"And what was your answer?"

"My father, daddy, pop, whatever you call a male figure."

"Who is your father?"

"Someone you know all too well. I'm not allowed to say any more."

Several different torture techniques suddenly came to mind but Bucky stopped himself. For one thing, this wasn't the time. For another, he didn't want to see the disappointed looks on Steve's, Natasha's or Sam's face.

Sam…god where was he?

"Natasha, found anything as of yet?" Bucky asked into the com.

"Nothing physical. I'm downloading one of their many hard drives now though. There isn't much actual paper work here." There was a pause. "You alright?"

"I'm fine," Bucky immediately replied back. He then went silent as he wondered what secrets could be down there. Would it bring back any memories? Had he ever been there? Sin seemed to know him but he couldn't tell if it was personal or she'd simply looked over a file. Finally he asked, "May I see?"

"Bucky we need—" Natasha tried but Steve was already cutting her off.

"I'm already on my way up. If I need help I'll just give a shout."

"Alright, I'll wait until you get here," said Bucky.

"Ah, so I get Mr. America again? I wonder if he'll be any more talkative now that he knows you're okay," muttered Sin.

"Perhaps. Or maybe he'll hit you again for me," Bucky replied even though he knew that probably wasn't true.

It wasn't long until he saw Steve walking towards him so he met him halfway, away from Sin.

"Floor four seems to be bigger than the others so be careful. Most of the lights don't work either," Steve added. He looked over at Sin and then back at Bucky, his voice dropping. "Are you okay?"

"I'll be fine."

"That doesn't mean you're okay," responded Steve. He put his hand on Bucky's shoulder, looked like he wanted to do more, and then settled for a small squeeze. "Just don't do anything reckless."

"Same goes to you," Bucky said, pulling up a small smile even though he didn't feel like it. He saw that it eased Steve however.

Steve watched Bucky go and then went over to Sin. All other hostages were being watched by Coulson. However, Sin was different from any of the Hydra agents and could have more information, even if she wasn't willing to share at the moment. He'd try to figure out some way to get it out of her.

Bucky made his way back to the elevator and moved down to the third floor. The moment he stepped out he was shocked to see Fury standing in front of him.

"Where's Natasha?"

"Being computer savvy. I came to show you the way to the next floor."

"Still don't trust me?"

"Would you?"

Fury certainly had point, he had tried to kill the man after all, but the words stung nonetheless. He remained silent however and simply nodded for the man to show him the way. They walked to what looked like an office where a bookcase was moved aside, exposing a staircase.

Taking out a flashlight, Fury grabbed another one and handed it to Bucky. "There aren't many lights down there. You'll need this."

Bucky took it but couldn't help but frown, slightly confused on the matter. "I thought the area was a laboratory? Why would they work in the dark?"

"It's a lab alright. Maybe Hydra's just afraid of a little sun," muttered Fury as he made his way forward.

At the bottom of the staircase, Fury pointed to the left down a hallway. "Romanoff is in the first room on your right. Seems to be where they held most of their information. Barton and I have been down this way but that area hasn't been scoped out all the way."

"Then I'll start scoping," Bucky mumbled, turning away and making his way through the corridors.

Nothing he saw brought any sparks of memory to rise back up which made him disappointed and thankful at the same time. He still couldn't quite figure out why everything was in darkness though.

He came across one room that was large and spacious. There were tools of torture, some of which Bucky recognized, that hung along the walls and when Bucky finally shined his flashlight to the center of the room, he had to resist the urge to hurl.

It was no more than two hours fresh, the blood on the floor. Bucky could see where it had stained the concrete along with blood from other people probably weeks, months, maybe even years ago. It was hard to tell if the tortured souls had been killed in the room as well. It was certainly possible.

He left the room swiftly as he wondered if he had ever tortured anyone. An assassin, that's what he had been but there were always exceptions to a rule. The thought twisted his stomach but he pulled himself together and managed to continue on.

About thirty minutes later he hadn't found anything of much interest, only a few more labs where they probably tested on subjects that he reported to Natasha. Most of those rooms actually had lights in them but they were very dim.

Finally, Bucky came to one last room that was heavily bolted. With his metal arm, he broke all of the locks and finally made his way into the room. What he saw had to make him do a double take.