Alien from L.A. (1988)
A young woman with a childish voice travels to Africa looking for her missing archaeologist father, and stumbles into a strange subterranean civilization.
The series was about a man named Joel, who is put in a spaceship by an evil scientist, and was forced to watch some of the worst B movies ever made. Joel makes some robots to keep him company. Two of the robots watch the cheesy movies with him. While the movie is shown, the three make jokes and comments about the movie they watch.
In your opinion (if you have not seen these movies, then based on the plot outline alone), which is the worst movie ever made?
Source: The 25 best episodes of 'Mystery Science Theater 3000'