The film is based on the Newbery Award-winning book about 10-year-old
Flora, an avid comic book fan and a self-avowed cynic, whose parents have
recently separated. After rescuing a squirrel she names Ulysses, Flora is
amazed to discover he possesses unique superhero powers, which take them on
an adventure of humorous complications that ultimately change Flora's
life--and her outlook--forever.