Bulldog Drummond goes up against foreign agents trying to steal plans for a top-secret aircraft.
Hammond is after the Craig ranch and has framed Charlie Craig for murder. Mother Craig brings in the Range Busters. They capture one of Hammond's men and Alibi plans to trick him into a confession as to who the real murderer is. Meanwhile, Denny has overheard Hammond's plans for his next move and...
Julius Caesar leads the Roman army to battle against rebels in Gaul.
A fur trader guides a writer and her animals to safety in the Yukon territory when wolves are about to attack.