When Lt. ?Wild Bill? Traynor, bad boy of the Marine Corps, arrives at a San Diego Marine Base, he is surprised to discover he has been assigned to duty under his old rival, Captain Benton (Conrad Nagel). While eluding the advances of Rosita (Armida), a Latin dancer, Bill becomes involved with Bentons fiancee, Dorothy Manning (Esther Ralston), whom he quickly wins and Benton accepts the impending marriage. On his wedding eve, Bill, in the company of Rosita, becomes involved in a fracas in a gambling joint in nearby Tia Juana. Rosita disappears and Dorothy calls off the wedding. As Dorthy sails for Latin America, Bill resigns in disgrace from the Marines, but re-enters as a Private. Ordered to duty in Ponta Miguel, Bill discovers that Dorothys father (Hale Hamilton) is the governor. His old nemesis Benton has Bill sent to the guardhouse and Bill is vowing revenge when he is released?