In the not-too-distant future, robots are fighting for their equal rights. And when a mysterious and deadly disease known as "Rust" threatens all artificial life, salvations lies in the unlikeliest of heroes-with an obsolete construction worker known as HALE-19 and with AMBER-7T, a caregiver.

After awakening in a decommission facility, AMBER-7T is forced to rely on the dangerous and unapologetic HALE-19 in order to escape. Can these two contradictions find a way to escape or will they turn on one another to survive? Meanwhile, Art Detectives Drivas and Lawton find themselves saddled with the case of their lives and a pair of dangerous new adversaries enter the game.