A prison riot breaks out at the moment of a serial murderer's execution by electrocution, and his fate becomes indeterminate when the prison is shut down. 18 months later, a team of filmmakers converge on the prison to film a women-in-prison exploitation flick, but find that a certain somebody is disrupting their shooting schedule...

In the post-apocalyptic future, reigning tyrannical supercomputers teleport a cyborg assassin known as the "Terminator" back to 1984 to kill Sarah Connor, whose unborn son is destined to lead insurgents against 21st century mechanical hegemony. Meanwhile, the human-resistance movement dispatches a lone warrior to safeguard Sarah. Can he stop the virtually indestructible killing machine?