When a young dreamer and would-be skipper accepts a lucrative fishing charter to Mexico, he gets more than he bargained for. London saves the day and also helps the young man to realize what's most important in life.
A man who dropped out of medical school to raise money for his education, keeps promising he'll finish his degree "next fall semester." But after hearing the same promise for 5 years, the townspeople believe his plans are empty talk. London helps remedy the situation.
To get free publicity for her stage show, a struggling performer reports a crime that never happened. Once the police suspect her little scam, they become unresponsive to her cries for help -- even when a serial killer pays her a late-night visit! London lends a paw in the case!
After a rebellious teenager runs away from a juvenile corrections center, London leads the boy to the farmhouse of a lonely, aging spinster. Now caught between the love and acceptance of an old woman and a faithful dog, the troubled youth doesn't stand a chance!
Two boys have escaped 60's Cuba to Miami in order to track down the American doctor who's surgical skills are needed by Chico (Manuel Padilla, Jr.), the youngest boy. Hobo becomes their guardian angel.
Hobo teams with another hobo (Herb Vigran). Together, they unsuccessfully try to save a pair of work horses from the fertilizer factory. Next, they must help a bus load of kids during a flash flood, but need extra muscle to pull it off.
After London witnesses a hit-and-run car accident that kills an elderly woman, the dog methodically stalks the driver until the man's pangs of guilt -- and a cunning canine "quirk of fate" -- expose the crime.
Hobo wanders onto a secretive estate where he meets a dog similar to him. The animal has been trained by Karl to attack people of a specific heritage. The colonel takes the dog to Ottawa to attack a leader during a parade.
Henry Gibson plays a shy store owner that gets some help from Hobo in showing up the Sheriff, his rival for a woman, during a manhunt in woods for a felon.
Hobo comes to a timber town where the mill workers led by Dan are on strike. Farmers in need of wages are ready to cross the picket line. Hobo injured by bobbed wire learns a certain striker is to profit if the dispute continues.
