This is my new Avengers story. The main focus is on Tony and Steve's friendship and what would have happened if the information about Tony's parents death had come out sooner and Steve really didn't know it was Bucky who killed them. It's going to be a multi chapter story. Enjoy en reviews are always welcome:)

"Sir a package has arrived for you" Tony looked up from his phone as his AI spoke to him. He had to leave for a business conference in a couple of hours and was hoping to relax a bit beforehand. "That's weird I wasn't expecting anything" Tony mumbled more or less to himself as he reluctantly got up from his spot on the couch to retrieve his mail. He was trying to come up with what it could be but his mind just kept coming up blank. He hadn't ordered anything, he was sure of that, he would have remembered or else Jarvis would have remembered it for him and Pepper hadn't ordered anything either..she would have told him or Jarvis since he tends to forgets those things.

A couple of minutes later Tony was once again situated on the couch, looking at a tape in his hand which had been his 'mystery package'. At first he wanted to throw it away but his curiosity got the better of him and he decided to see whatever it was that was so important that he had to see it. He put the tape in the player and waited for the screen to turn on. He wasn't prepared for the content on the tape.

When the screen turned on it showed a date first, a date which he was all to familiar with; December 16, 1991.

"Jarvis what is this?"

"It would appear to be a tape of you parents crash sir, would you like me to turn it off?" Tony was about to answer him yes when another person entered the screen. A guy with shoulder length hair dressed in all black on a motorcycle. His left arm appeared to be mechanic. Tony knew this person.

" Sergeant Barnes?" Howard asked confused as the man he once knew entered his line of vision. It couldn't be him though he was dead and had been since 1944. He realized how very much alive the man in front of him was as his mechanic slammed into his face multiple times, killing him. His wife had screamed his name as Howard was killed by the hands of the man he once called his friend. Bucky walked around the car and reached his hand around Howard's wife neck as she pleaded with him not to kill her. His hand cut off her oxygen flow and within seconds she too was killed by the hands of Sergeant Barnes, his eyes completely emotionless.

Tony sat in silence as he watched Steve's best friend kill his parents. Deep down he knew the man on the screen was under Hydra's control at the time and didn't know what he was doing, yet another part of him wanted to find the man himself and strangle him with his bare hands. He'd killed his mom and Steve knew.

Steve was on his fifth punching bag at the moment, the other four and their content scattered all over the gym's floor. He had been training for a couple of hours, throwing jabs and punches. He had to leave for a mission in only a few hours and he wanted to get a last workout in before his departure. The mission was supposed to be simple, at least that's what he was told. Enter a Hydra base which wasn't that highly secured, otherwise they wouldn't send him alone, log in to their system, get the information needed and get out.

His hair was dripping with sweat as he kept throwing punches and his mind wandered elsewhere. His hand reached out towards his best friend as he fell off the train to what should have been his death. He could hear himself screaming his name and eventually looked away to hide his tears. The scene changed to the highway where he fought against the Winter Soldier. The place where he learned that his dead best friend wasn't so dead after all. "Bucky? He asked confused. "Who the hell is Bucky" Came the reply from the man in front of him.

For the past couple of months he had been looking into Bucky's files. Finding out everything about the Winter Soldier, some files he was still working on translating since they were in Russian and Nat wasn't always around to help him with them.

Steve snapped out of his thoughts when the punching back gave away and slammed into the wall, broken. He was panting hard and dripping with sweat. He leaned against the wall to try and catch his breath, his mind kept wandering off towards Bucky. He had to keep it together if he wanted this mission to succeed. He can't go on a mission when his head is not in it.

He had been so engrossed in his thoughts that he hand't heard Tony enter the gym and walk up to him. He was pulled out of his thoughts by an iron fist being slammed into his cheek full force. The skin on his cheek gave away easily and blood started flowing from the cut freely. Steve was barely able to keep his balance as he looked at his friend. "What the hell Tony" He screamed as his hand shot up to his left cheek which was now bleeding. His vision blurred slightly and he shook his head slightly as he waited for it to clear. Tony's hand was covered by his suit's gauntlet which confused him even more.

" You knew" Tony said through gritted teeth.

"What are you talking about Tony?" Steve asked confused, yet still angry after being punched in the face.

"Your friend Bucky... He killed my parents! You've been looking through his files for the past couple of months, you knew Steve!" Tony screamed as he wasn't sure who he was more angry with at the moment. Bucky for killing his parents, although he was under mind control and Tony was aware of this, or Steve for not telling him.

Steve's eyes softened. "Tony I swear, I didn't know"

"Don't bullshit me Rogers!"

"I swear Tony.." He was cut off when Tony raised his hand and fired his gauntlet at Steve's abdomen. Steve was thrown back by the force of the blast and slammed into the wall behind him, the air knocked out of his lungs. He fell to the ground and groaned in pain as his hand gripped his stomach. Normally he could handle a blast like that when he was wearing his Kevlar Captain America uniform and even then it would still hurt, now the pain was much worse. It had left a large burn across his stomach which he could feel through his shirt.

Tony's eyes widened as he realized what he'd just done. He had shot his friend into a wall...no he deserved it.. he should have told him. But what if he was telling the truth? No he knew! Right? Tony couldn't look at Steve, he was both angry at him and ashamed of himself so he did the only thing he could think of, he turned on his heel and stormed out of the gym leaving behind a very confused and slightly hurt super soldier.

That's it for now, what did you think? Liked it? Let me know what you thought and whether I should continue or not. I promise that the next chapter will be longer and filled with more Steve whump.