Douglas Fairbanks stars as "Sunny" Wiggins, who believes in eternal optimism and good spirits. This places Wiggins at odds with his staid, wealthy family, who decide to get even when he blithely invites a group of derelicts to his sister's coming-out party.
Leaving his wife Rose for a few weeks and eager to do research for his new novel about the elderly, Henry Norman goes to live in a home for the aged, where Blossom, the home's young maid, falls in love with him. When she lets him know how she feels, however, Henry tells her that he has a wife, and then, his research over, he returns to her. He discovers, however, that Rose has eloped with his friend, Perry Westley, and that they both have been killed by a lightning bolt that struck Perry's car.
Young shop-girl Mamie Conroy and wealthy Jeanette Gregory become close friends. When Mamie foils an attempted abduction of Jeanette, the latter's grandfather, Simon Gregory, brings Mamie into his home and treats her like a member of the family. But she is again involved in a kidnapping attempt and is herself accused of robbery.
