Marked Money stars Junior Coghlan as the orphaned son of a seafaring man. His late father has left instructions that The Boy is to be delivered to the home of Captain Fairchild (Bert Woodruff) the father's old sailing master, along with $25,000 in cash to finance the boy's education.
By coincidence, Pat and Patachon are cast for the lead roles in a major film production. It quickly turns out that the odd couple doesn't fit in to just any plot, and especially Patachon's helpless attempts to play prince charming are testing the director's patience.
A young cleaning woman in a boarding-house relieves the drudgery of her job by daydreaming that a foreign student at the house, who she believes is interested in her, is actually a wealthy nobleman who sweeps her off on a romantic journey.
Mickey McGuire is putting on a bad performance of Uncle Tom's Cabin, but first he has to deal with the competition; another boy is putting on a wild animal show -- house cats inflamed by the "tamer" having white mice in his trousers.