Katrina is just the average teenager, going to a school in London, when an attack by two strangers cause a mysterious change in her, something that will change her life forever. Stuck in a new world, Katrina struggles to deal with it, but learns to control herself as she begins to live within two bodies.

Sloane admired her brother for all he was worth even until the last days of his death. When he was killed in action, Sloane makes a daring choice and decides to join the military, so that she would be the one to kill her brother's murderer.