A digital ghost. A city of shadows. One ticket to survival.
In the neon-drenched veins of the city, the subway isn't just a way to get around-it's the only place to hide.
Caleb is a "Shifter," a glitch in the system with a biological circuit fused to his DNA. In a world where every thumbprint is tracked and every heartbeat is logged by the Grid, he is the only thing the authorities can't see. But when he rescues a girl carrying a decrypted file that could crash the city's artificial intelligence, Caleb goes from a ghost to the most wanted man underground.
Now, hunted by high-tech enforcers and shadowed by corporate assassins, the two must navigate the decaying tunnels of the "Subway Shifters" network. To save the city, Caleb will have to do the one thing he's avoided his entire life:
Plug in.