Susie Smith has no idea where she came from or who she used to be. Even her name is one she was given at the hospital where she woke up after a serious brain injury.
The only thing she knows about herself is that she was caught in a super battle and was just one of the collateral victims of Malice's attack on the Megalopolous parade. One among hundreds of wounded people, no one stepped forward to claim her and she was eventually shuffled off into foster care.
Then, while hanging out with her friends, the mall is attacked and Susie comes face-to-face with the Teen Demis. And they seem to know her...
Now she must remember who she used to be and find the person that betrayed her and left her for dead.