When they find another person in cased in ice. They find out its actually (Y/n) (L/n) who went missing when Hydra kidnapped her because she was injected with the same super serum as Steve Rogers and then went missing after the plane crash with Steve. When she wakes up she remembers Steve and Bucky but not everything that happened to her.

{DISCONTINUED} "(Y/N)? Is that you?" 1945. A significant year for many across the world. Usually identified as the end of WW2 or the fall of Hitler. For you, It's identified as the loss of a great man or the year HE died. Almost everyone knows his name. The heroic Captain America. To you, he was always Steve Rodgers. Regardless of people's opinions, he was a great man. IS a great man. 1945 also marks the year you gave into Hydra. Grief stricken and Heartbroken, you gave it all away. You were the ruthless assassin 'The Masked Shadow'