When a mysterious figure appears to cause a series of disruptions at the Frisbie Home in New York, word goes out to Scotland Yard that the Fuzz-Faced Phantom is at work. Soon, Charley MacNeesha and his assistant MacGregor are sent across the ocean to investigate.

All of those handsome young men in their flying machines are billeted in a field next to the Widow Berthelot's farmhouse in France. Her daughter Jeannine is curious about the young men fighting for England in World War I and their airplanes. Then one of the aviators is killed. His replacement is Captain Philip Blythe who can't help but notice Jeannine. When he lands the first time, she is standing in the middle of his "runway." She makes a more favorable impression when he sees her later by the lilacs. When all of the young men depart on a mission, Blythe promises to return.

The wealthy and impulsive Rollo Treadway decides to propose to his beautiful socialite neighbor, Betsy O'Brien. Although Betsy turns Rollo down, he still opts to go on the cruise that he intended as their honeymoon. When circumstances find both Rollo and Betsy on the wrong ship, they end up having adventures on the high seas.

A film projectionist longs to be a detective, and puts his meagre skills to work when he is framed by a rival for stealing his girlfriend's father's pocketwatch.