 Rocky, a Range Detective, arrives to help Nugget with rustlers. When he learns Nugget owns only three cows, he stays on anyway and soon becomes involved in Benson s attempt to blow open the banks s safe. When Rocky upsets his plans, Benson supposedly gets rid of him by having him declared an outlaw wanted dead or alive. Then Benson takes a load of explosives into an old mine located directly under the bank vault.