Trail boss Jow Bravo and his men attempt to cash a $500 cheque at the hardesty bank but their request is denied and they turn rowdy, ransacking the bank. They discover a vault containing $100,000 but are prevented from stealing it by bravo, much to one gang members displeasure. When they ride into cimarron, they are quickly arrested for their escapade by marshall Jim Crown, an old friend who knows only too well about Bravo's chequered past. Sensing an opportunity, crown sentences bravo to 90 days as a deputy marshall in hardesty. With a wolf guarding sheep and his old pack sniffing around the bank, Bravo must prove hinself the lawman Crown believes him to be.