The Three Mesquiteers (Stony, Tucson, & Lullaby) ride with a band of explorers searching for Professor Marsh an archeologist, the father of the female lead, who has discovered a lost city with hidden treasure, but who has been held by a prisoner by an Indian tribe, who has killed Marsh's partner, through a traitor amid the archeology party. Its up to the Mesquiteers to discover the villain among them and save the party from thirst and the murderous rampage of the tribe. Very enjoyable 3M film with nice emphasis of the comradery between the three friends, and also gives a nice glimpse of the style Republic used in their westerns and serials set out west. Wright's direction is quicker than what else I've seen of him, but he rushes through the end which is the drawback of the film. Nice location shooting in Nevada, and a good supporting cast make this one a winner. Rating, based on B westerns, 9.