Bulldog's wedding plans are put on hold when his fiancée Phyllis (Heather Angel) witnesses the violent kidnapping of long-time pal and wedding guest Colonel Neilson (H.B. Warner) of Scotland Yard. The chase leads to far away Morocco where a foreign spy ring headed by the ruthless Richard Lane (J. Carrol Naish) holds the Colonel prisoner. If he doesn't give up his country's secrets, a large and distinctly unfriendly lion is ready to rip him to pieces. Can Bulldog save the day?