The best way to describe Wild Jumbo is like 70 minutes in Grand Theft Auto - you drive around for no reason for a bit, maybe kidnap a side character, take a side mission (find guns) and then try your hand at a main mission, which is too hard and there are too many cops so you fail miserably and have to start the game over, in this case, with a third movie.
An odd, carefree rollicking little Scooby Doo (a la Japan) adventure. Miscreant gang -- like theatre troop drop outs -- taken to streets and apocalyptic industrial landscapes, looking for the right crime. It's never clear if they are mentally challenged or myopically smart until the end. Strangely funny and a little sexy in its lack of pretense and carefree editing.