Juan Morales is a Mexican rebel wanted by the French forces in Mexico given sanctuary by the federal government under the protection of the four Rangers. Due to their carelessness, he is kidnapped and returned to Mexico for a reward. The upset Parmalee orders the four Rangers to go to Mexico to obtain his return with the aid of the rebels. Their contact is Erik's beautiful friend Carmella Alveras. Juan is being held in a prison waiting to be executed by firing squad. They devise a plan for the Rangers to sneak into the prison and change the bullets for blanks but the plan is foiled. Plan B has the Rangers go undercover to break Juan out of prison but Reese is not happy with his disguise - as a woman.
—Anonymous