This is basically a series of vignettes with escaped prisoner Fred Williamson following conman/bandit Richard Pryor across the old west (Why?) and becoming the foil of Pryor's comedic schemes, after which he always takes off, leaving Williamson holding the bag.
Though not really funny in a laugh-out-loud kind of way, it's all pretty laid back and easygoing, with Williamson and Pryor fairly likable, making this entertaining for awhile.
About halfway through though, it starts to get a bit tedious, with a "plot" that's way too fluid and a budget that's too low to make this something I'd recommend to people who aren't already huge fans of the two stars.
The worse things about this are the repetitive use of the corny funk theme song and the fact that the legendary vocal group The Ink Spots make an appearance but aren't given a chance to sing.