Kate — codename Agent K69 — is a retired special forces operative who gets called back into active service when there is no one else left to send. The assignment places her at the epicenter of a zombie virus outbreak, specifically where patient zero is expected to be — the only person who can provide the information needed to stop the spread and save everyone still alive. Kate worked in the adult film industry after retiring from special forces. She brings a particular set of skills to both professions.