Steve hears Sam call out for them, any of them, and Steve comes running without a second thought for his own safety. Sam isn't usually the type to call out and risk notice like that, he's a soldier, he's trained to know that in enemy territory you just don't do that. If you do, the likelihood of getting yourself and your team kill skyrockets. So, if the other man is yelling for them, then he knows it's bad.

Arriving on the scene, Steve stops short for a second, eyes wide at image before him, his heart jumping into his throat in fear. What did Sam do to him? was the first thought to cross his mind, but it felt so wrong, foreign, that Steve quickly shoved it to the side.

Steve's mind races with memories of field amputations in the war and he already knows how terrible this is about to become. But he also knows what to do. "Shit, Sam get him on the table, I'll gather what we need."

With that he moves, moving to gather his first aid kit, the cleanest cloth he can find for dressing, that water proof coat-thing Bucky has, something sharp enough to cut without sawing....