 In the little town of Dorado, widely known as a town with no crime and no bank to rob, young Polish-born Steve Kovacs (Robert Neil) is fighting a two-edged sword of prejudice; his foreign birth and also the fact that his brother, Nick Kovacs (Roy Barcroft), is the leader of an outlaw gang known as The Missourians. Marshal Bill Blades (Monte Hale) and lawyer John X. Finn (Paul Hurst) are on the boy s side but are fighting a losing battle, especially when Nick brings his gang to Dorado away from the robbery and murder charges behind them in Texas, Oklahoma and Missouri. Nick uses threats against Mrs. Novaks (Sarah Padden), their mother, to force Steve to help him hold up and destroy a wagon train of supplies intended for the building of a new church. Masked, and wearing Steve s easily-recognized plaid shirt, Nick and his henchman Stash (Lane Bradford) robs postmaster Walt (Charles Williams) of the $10,000 deposited there to pay for the church-building supplies, and the murder of Mayor McDowell (John Hamilton) by Paul Valentine (Howard J. Negley) are both blamed on Steve.