The Avengers Meet Riley

Riley was taken from her adoptive family when she was 5 by the Red Room and trained in the worst conditions to be the next Black Widow. 10 years later when The Black Widow and Hawk Eye are sent to kill her they luckily make a different call instead. As time goes by secrets from the past hold the key to the future and Riley's destiny. (Set before The Avengers but after Iron Man 2)