In 2046, Detective Ross Sylibus is transferred to Mars after a country singer aboard his flight is murdered. The victim is revealed to be a “Third”, a humanoid robot that looks and feels like a human. Sylibus partners with Armitage, a striking female cop with a tough attitude. Together they investigate the singer’s murder and the deaths of other women on Mars, uncovering a conspiracy that threatens to make them both targets of the Martian government.