in crystal city and a group of mormon hire the horse trader travis ( ben johnson ) and sandy ( harry carey jr. ) a wagon master to lead their caravan to san juan river . along the journey and they meet first the broken wagon without water of the quack dr. a. locksley hall ( alan mowbray ) and the prostitute denver ( joanne dru ) and fleuretty phyffe ( ruth clifford ) . then the sadistic outlaw clegg boys decide to join the mormon caravan to disguise the patrol lead by the sheriff of crystal city that be chase them . when the navajo cross their path and they be invite to visit their hamlet for a dance party . when the wagon train be near to their destination and the clegg boys threaten the settler and force sandy and travis to take an attitude . wagon master be another great western of john ford . the sequence with the wagon train cross the desert and the hill be impressive . the adventure of the group of mormon be funny and very entertaining and the song fit well to the plot despite be date . my vote be eight . title ( brazil ) represent caravana do bravo ( caravan of the brave ) .