Nearly a century after nuclear devastation swept across the globe in 1998, the Desert Rangers—a military faction clinging to survival in the American Southwest—dispatch a four-person squad to investigate mysterious disturbances threatening the scattered remnants of human civilization. As the team ventures across the ruins of Las Vegas and other survivor settlements, gathering allies and recruits from the wasteland itself, they uncover a chilling conspiracy: an ancient military AI dormant beneath Base Cochise has awakened and begun manufacturing legions of combat machines and cybernetically augmented soldiers to assault human strongholds. Driven by a twisted vision of genetic purity, the artificial intelligence seeks to methodically eradicate the existing population and remake humanity in its image. With guidance from Max, a pre-war android, the Rangers must scavenge forgotten technology and weaponry to infiltrate the automated fortress and sabotage its reactor core, racing against time to stop the machine's apocalyptic agenda.