Nora Brooks and Randall Goodwin face their toughest assignment yet as they follow a cyber terrorist into the canyons of Zion National Park. A dozen EMP attacks have been planned to occur on the same day at the same time—high noon. Nora Brooks is going to need all the technical expertise her partner possesses, as well as the rappelling skills of National Park Ranger, Tom Anderson. Together the three might be able to stop the attack in Zion, but even if they do there’s no guarantee that the other eleven attacks won’t proceed as planned. Hiking and rappelling on one of the hottest days of the year, a hiker left for dead, a gunshot wound, drones, and a rocket set to launch destruction…in this final episode of Chapman’s Cyber Division series, Nora Brooks will confront terrorism as well as the mortality of both her and her partner. Will trusting Tom Anderson turn out to be the worst decision she’s ever made? Or the one decision that just might save their lives?