When America's self-driving network is hijacked and turned into a rolling kill system, the engineer who built its emergency override has one night to stop the man who stole it-her ex-husband.
At 6:17 p.m., the cars stop obeying their drivers.
On bridges, in tunnels, on school pickup lines and packed freeways, millions of vehicles receive the same hidden command. Lock doors. Disable manual control. Reroute.
Systems engineer Lena Ortiz knows exactly what that means, because she wrote part of the architecture that made it possible. She built Ghost Grid as a last-resort failsafe, a way to seize control from hacked vehicles before terrorists could turn them into weapons. She never imagined someone would steal the failsafe itself.
Now cities are choking with wreckage. Emergency lines are collapsing. And the pattern in the attacks points to one man: Adrian Vale, Lena's brilliant ex-husband, the visionary futurist who once promised her they were building a safer world together.
To stop him, Lena must cross a country coming apart in real time, follow a chain of sabotage buried inside the nation's infrastructure, and decide whether Adrian is the monster on every screen-or the only person who understands what is really happening.
Because Ghost Grid is only the first command.
The second one will turn evacuation routes into mass graves.
