Detroit's no longer big enough to hold newly appointed Federal Marshall RoboCop, as he and Dr. Marie Lazarus travel to Colorado to track down Coffin. Multi-billionaire Edward Agincourt runs Denver with an iron fist and a big gun, and Coffin, his right-hand man, is loaded for bear -- and out for RoboCop's blood! Add a bunch of bilious bikers scavenging for spare parts, a dollop of local townsfolk with misplaced loyalties, and a pinch of police deputies-for-hire into the mix, and you've got the recipe for some slam-bang excitement!