Title doesn't mean anything; a clue that the film is essentially a thrown-together jumble of different ideas intended to keep the series moving. First act is a post-Conan fantasy epic; second act turns into a Lord of the Flies survival drama; third act is just a lazy recycling of the same second-hand set-pieces from The Road Warrior. Miller tries to fit Max into a post Spielberg/Lucas landscape, but fails miserably.
In '85 I remember thinking this was a betrayal of the spirit of the first two films. Watching again for the first time since I think I was being generous. Chaotic plotting and lesser action found this somewhat neutered Max pretty toothless. Villains are a joke and kiddie subplot pretty desperate; this was no 'Lord of the Flies' after all. Max needed a more fitting finish.....or a new beginning. Bring on the fury.
(Generous) 5 - The worst entry in the series, but not a complete disaster. The set design and costuming are as lovely as ever and the first act is very enjoyable for what it is ("Lite Max"). It's when the film moves past the dome fight and into post-apocalyptic Peter Pan territory that it begins to unwind, and the whole thing promptly succumbs to a major identity crisis; caught between grit and banal geniality.