A bomber is on the loose in Detroit, and even though OCP deploys a new bomb squad to deal with the situation, former police officer Russel Murphy, father of Alex Murphy, cannot stand by and watch. Robocop and Murphy (who is skeptical about working with a machine) team up to try and stop madman Felix Weber before Michigan finds itself in the state of Nuclear Winter.

Robocop and Madigan battle a corrupt union leader and his secretary as they pursue an ex-terrorist.