Bulldog Drummond goes up against foreign agents trying to steal plans for a top-secret aircraft.
A bank-robbery in London prevents - again - the marriage of Bulldog Drummond with his girlfriend. But this time when the delinquents are caught it will be celebrated at last.
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.
