Winter Ghost (Captain America's Daughter) ON...
After the Captain crashed the Hydra aircraft into the Atlantic, S.H.I.E.L.D. was founded. Peggy Carter discovered that she was pregnant with Steve's child. When Charlotte was born, she was loved by the entire S.H.I.E.L.D. family. Charlie trained with everyone and was educated in both the classroom and the the field. So when Charlie mysteriously disappeared, it affected the whole agency. Everyone searched, but none could find her.
But what they didn't know was that Hydra was still in the works. Hydra had agents planted in S.H.I.E.L.D. that captured Charlotte. Hydra had her brainwashed to think that she was abandoned by her mother and that they saved her. She became an assassin that was immortal. When they no longer needed her, she would be Cryogenically frozen until her services were needed again.
But what happens when she meets the soldier lost in time?