The Runner

Maia Marten is a prosecutor and mother to her diabetic son Noah, living in London. On the day she is scheduled to appear in court for the trial of crime boss Tommy Boyd, she drops Noah off at school, then goes for a run. While on her run, she receives a call coming from Noah's phone from an unnamed man in Boyd's employ.[a] He informs her that he has kidnapped Noah, and orders her to follow his instructions to ensure his safe release. He also reveals that he has hacked her phone and is tracking her, leaving her unable to call or talk to others for help. The Caller guides Maia to a dumpster, where she finds Noah's backpack containing a gun that was used by Boyd. The Caller tells her that he has placed Noah in a diabetic coma using his insulin pump. He instructs Maia to run to the Excelsus Hotel, where key witness Radian Tafa is being kept under police guard, and use the gun to kill him, telling her that if she does not succeed within one hour, Noah will die.