Four years following the rise of the Venjix Computer Virus, its cabal of sentient machines have seized control of the Earth's defense systems and waged a successful campaign against the human race, reducing the planet to a heavily polluted wasteland. On the verge of extinction, what remains of the human populace are instructed to seek shelter within the domed city of Corinth, defended by the RPM Power Rangers under the command of the mysterious Doctor K.