Bucky's little sister, Riley Barnes, was born in Hydra. She was called the Red Star Experiment, supposedly what was going to be the most dangerous weapon in the universe. She can't remember anything, so the Avengers must help her get her memory back. When she meets Peter, the one and only Spider-man, things get difficult for Riley. With what's still inside of her, and what's beginning to show up, can she deal with it all?