In the future, mankind has been invaded by a lethal alien bug race, thirty feet tall and possessing the ability to fly. Freedom fighter Johnny Rico sets about training up an elite military unit in order to combat the alien invaders, while his girlfriend, Carmen, becomes a fighter pilot. However, in the heat of battle, Johnny is unaware that Carmen is being seduced by her dashing flight instructor.

A triple bill of sci-fi cops. The first film, 'Robocop', is set in the near future and Detroit's soaring crime rate is unsuccessfully policed by a corporation which plans to build a new city, if its workers can go about unmolested. When its new 'enforcement droid' proves unworkable, a murdered cop (Peter Weller) is wired into a computer-controlled titanium body and set to the task at hand. Unimpressed, 'Robocop' seeks vengeance on all sides in this violent but often funny tale. In the second film, 'Robocop 2', a new model, Robocop 2 (Tom Noonan), is built while Robocop 1 still patrols the streets of Detroit. Robocop 2 is given a maniac's 'soul', thereby setting the stage for a showdown between the two computer constables. Finally, in 'Robocop 3' Robocop is befriended by a young girl whose parents have been killed, and after his partner is killed by the head of a private security firm, he joins a group of rebels to fight back against the evil businessmen. There is a notable fight sequence between a plastic-like robot Ninja and the sluggish metal Robocop, which, together with the rebels hiding out in the derelict General Motors Factory, constitutes a thinly veiled critique of the Japanese car industry from the heart of Detroit - the original motor city.