When Wells Fargo stage runs in central and west Texas are targeted by outlaws, Remington Holt and Amos Dewery are assigned to track down the thieves. They also must discover whether the robbers are part of the organization attempting to bring down the United States Government. In order to solve this mystery, the Wells Fargo detectives must partner with the Texas Rangers.

Is there a traitor in Wells Fargo's employ? To find the answer to this question, Holt, Dewery, and the Rangers must cross the border into Mexico, where danger and death await.