You fight your way out of the underworld, die, and do it again, which is weirdly more fun than it sounds.
Fun fact: First video game to win a Hugo Award, a prize normally reserved for science fiction literature.
Lads who completely missed the point of this film have been quoting it in their bios for twenty-five years now.
Fun fact: "Frames of Tyler Durden flash subliminally on screen several times before his character is formally introduced."