On the trail of the Arizona Cowboy Gang, Ranger Burrack rides with indian Territory lawman Dan'l Thorn into Mexico, where the Cowboys have stolen several thousand dollars in gold. The lawmen are there to locate and arrest a pair of twins outlaws by the name of Smith, but they get sidetracked hunting for the stolen loot. Trouble is they aren't the only ones on the gold's trail. A competing gang has stolen the gold from the cowboys, a beautiful lady detective will stop at nothing to earn the reward for recovering the booty, and the Smith brothers have their own connection to the gold.