 Five ex-Confederate soldiers have robbed the bank in Dodge City and are on the run through Indian territory, followed by Matt Dillon. The outlaws find abandoned Union military uniforms and disguise themselves as Union soldiers. At the next town, they declare martial law under the guise of an Indian uprising. The outlaws inveigle the townspeople into loading all their valuables on a wagon, which will then be stolen. When Matt catches up to the outlaws, things come to a head.