Madi Preston, a veteran of Britain's elite special operations J-Squad unit, is burnt out and up to her eyeballs in debt. She and the rest of her team have retired from the military but are now trapped having to pay to service and maintain the technology put into them during their years of service. Madi has decided she's had enough. She will take an off-the-books job that should earn her enough to pay out her and her sister, but when the piece of tech she's supposed to steal turns out to be a kid, and she suddenly blacks out... she finds herself on the run from everyone she's ever known.