The killer, D'anclaude, is in custody, but the androids, called Thirds, are still dying. Armitage's disappearance leads Mars PD to suspect that she's involved in the murders. Only Sylibus knows why she has taken the case into her own hands.

Armitage desperately searches for connections between D'anclaude and her father, who designed the Thirds. She and Sylibus reunite to battle police forces and abduct the killer for questioning, where they are confronted by a crazed D'anclaude robot clone.