A fireplace within the mountains drives a wolf pack into the close by desert the place they terrorize the native residents. The chief of the wolf pack is Lobo, really a halfbreed (Rin Tin Tin). When the pack is found looking a herd of cows, a posse offers chase. Lobo leaves his pack to steer the posse away. He's injured and located by an area prospector, Dave Weston (Charles Farrell). The prospector nurses Lobo again to well being and the 2 grow to be shut pals. In the meantime, Weston has made a Borax discover within the space. His girlfriend Could Barstowe (June Marlowe), daughter of a rich rancher, is happy. Nevertheless, the native chemist, Borax Horton (Pat Hartigan), really a declare jumper, plans to steal the declare.
