When Carrie Sierra woke up from a two-week coma with a new heart, it wasn't her past that she remembered. It was the last few minutes of CIA agent Kate Willows. Carrie could remember almost everything about Kate's final moments with the exception of the face of the man responsible for her murder. The only face haunting her memory from that night was the man Kate loved with all her heart. Her handler and lover, Agent Davis Raines.