HYDRA's Assassin

After the downfall of Alexander Pierce, the Avengers begin to take down base after base, searching for Loki's scepter. A girl, a ghost, a super soldier, HYDRA's assassin, is sick of the cards dealt to her in HYDRA and decides to leave that life forever. But how can anyone flee from the past forever? Especially when an old friend appears with the Avengers. With all known HYDRA agents being hunted, she knows it's only a matter of time before she's caught, discovered, imprisoned, and killed.