In Los Angeles's shadows, Hydra Corp peddles black-market chips that grant superhuman combat skills—at a lethal price. Jax, a washed-up pit fighter, is implanted with a stolen Oracle chip when his roommate is executed by Hydra's Cleaners. Rising from the harbor as vigilante "Ghost," he carves an underground empire in three months, until ace assassin Selene comes for him. Unlocking her tampered memories reveals the truth: CEO Adrian Voss murdered both their families. Enemies become allies, and Jax storms Hydra Tower—the chip that made him was meant to harvest his data all along. He outsmarts Voss, burns the empire down, and rebuilds the city on his own terms.
