After a night out of partying and left behind by her friends, Ava wakes up and sneaks back home only to find that shes already safe in bed But thats not Ava its someone who looks just like her A time traveling fugitive from the future has jumped back in time and stolen the teenagers body, her identity, and her life Whats more shes not alone There are others, hiding in the past, secretly living among us, plotting to alter the future Without her body, Ava is a virtual ghost, silent and invisible to the world And, so far as she knows, shes the only one who can stop them and put the timeline back on course