Nothing I could tell you about 2019: After the Fall of New York (1983) would be as rewarding as VTC's back-of-the-box description of the film:
The year is 2019: A thermonuclear war has just been waged against the Inter-American Confederation, in which the Eurax were victorious due to a giant anti-missile protective bubble.
In a desperate mission to steal the secret of the bubble, "The Blonde" and "The Dwarf" are transported to Eurax by nuclear submarine.
Entering the city through its sewerage system, they discover a subterranean, sub-human, infantile species who thrive on rats and public fornication. "The Blonde" and Mary - the only fertile female left, are captured by the Eurax. Hair-raising adventures take place as a nuclear missile is about to destroy the rest of the old world.
A giant anti-missle protective bubble? Transport to Eurax by nuclear submarine? An infantile species who thrive on rats and public fornication? There's literally nothing about those three paragraphs that I don't love.
Click through for an epic painted-art VHS cover and back-of-the-box images from the film.