After the events of Westworld, John Moore is assigned to hunt down Simon Quaid who has made off with a collection of androids for his own dangerous purposes. Moore must find a renegade android aboard a nuclear submarine.

Quaid blackmails an owner of the Stoner Oil company for the company's profits. John and Pamela must find the android in the company's ranks before Quaid can win.

An experimental car explodes and Westworld circuitry is discovered in the wreckage. John and the Delos team must determine Quaid's latest scheme.

Quaid steals uranium from a nuclear power plant. John and Pamela must find the robot in a rock band before it can be used to build a bomb.

A police captain that is in charge of a state governor's visit is Quaid's target. John and Pamela must stop Quaid's efforts and must locate the robot among the many police officers protecting the governor.