Steve and a few other avengers were raiding a HYDRA base and Steve had been told to check out the basement, see if there was anything, or anyone, down there. When he came down there, he saw you, a child, huddled into a corner. You were very clearly injured, in several different places but had an dangerouse expression. HYDRA conducted experiments on you, gave you uncontrolled superpowers and brainwashed you. He slowly approached and knelt down in front of you. Calm down kid... come here, let me help you... I won't hurt you. He said, almost immediately, setting down his shield and make calming handmoves while kneels down close next to you.