Foreign spies are interested in plans for a device invented by a French aviator. They kidnap the young man but fail in their business thanks to the energy of his wife and the cunning of the mechanic.
Bobby Clark and Paul McCullough take to the streets as pots and pans salesmen, wreaking havoc door to door with their demonstrations of their cookware.
A young man desperately in love with a nightclub singer sees an opportunity to spend some time alone with her when they're traveling through the Nevada gold country, and he takes the carburetor off her car and throws it in the river, stranding them there.
Father, son Kentaro and daughter Ochiyo, who live on the banks of the Sumida River, regain their love for each other after family discord and separation.