Disclaimer: I own nothing
He didn't know where he was, all he heard were the voices yelling. Somebody stuck something sharp into his arm and he cried out. Then, everything went dark.
It had all started with their mission to stop HYDRA's weapon supply train. Everything was going well until one of the compartments exploded, causing him to fall from the train onto the icy slopes below. He didn't remember much of the fall, but he did remember how his best friend, Captain Steve Rogers come to rescue him.

Steve lay down next to him in the snow, and gently took his hand. "Bucky," he said gently, as if talking to a young child instead of a soldier; "the medics are here, we're gonna get you to a doctor and everything is going to be just fine. But I need you to coöperate, don't fight them, they are just here to help." Bucky nodded silently and gripped Steve's hand, looking up at him.

"Yes," said Steve, answering the unspoken question, "of course I'll stay."