In this is '40s western a U.S. marshal chases a band of big-name bandits into no-man's territory (land outside of U.S. government jurisdiction) as he's trying to locate his little brother. He ends up facing off with none other than the James Boys, the Daltons and other notorious fellows. Badman's Territory proved so successful that the formula was repeated several times by RKO and other studios. ~ All Movie Guide