Blazing Saddles is a Mel Brooks western satire that encompasses the idea of black folks being in charge of a township in the era of gun fights and saloons. Bart (Cleavon Little) becomes sheriff of the town of Rock Ridge through a political move by Governor William J. Lepetomane (Mel Brooks) and right hand man Hedley Lamarr (Harvey Korman). Bart happens to be a black man, which is the reason why he is sworn in as sheriff. If the towns people cannot defend themselves, it is likely they would move out of the town of Rock Ridge, allowing Lamarr and Lepetomane access to build a railroad through the middle of the town.
This clever plan fails, however, when the sheriff takes on the toughest of criminals that intend to do harm in Rock Ridge. Bart befriends the town drunk, Jim (Gene Wilder) and swears him in as deputy.
Lamarr and Lepetomane send in the meanest criminal they can find; Mongo (Alex Karras) who rides into town on a bull and is tough enough to punch out horses. Mongo is taken down by a "brains over brawn" trick performed by Bart. Bart and Jim chain Mongo to the jail cell doors to keep him contained while unconscious.
Mongo wakes and as he yawns, breaks the chains as if they were string. The big man decides he likes Sheriff Bart and vows to follow him. Mongo respects the fact that Bart was the first to ever capture him.
Mongo is not only an asset to the side of the "good guys" due to his size but he provides information about why the town is being attacked. Once he spills the news of the railroad, Bart and Jim devise a plan to fight off the attackers and save their town from destruction.
The film has a surprise ending. The classic comedy, Blazing Saddles, is packed with Brooks humor.