Bored with his daily routine, Breckenridge Gamble accepts a secret mission from some oil magnates to deliver a message to President Losada of the South American Republic of Centralia. Upon his arrival, Gamble learns from Angela, the president's daughter, that her father has been imprisoned by Cortez, the leader of the revolutionaries. Gamble also is imprisoned but frees all the prisoners as well as himself by impersonating the prison comandante. After forming an army, Gamble delivers the message--a large money draft sufficient to pay the army and secure President Losada's government--and is rewarded with Angela's love.