After awakening to find that her pet ferret is now pet feet, a young girl discovers that the letter "R" has disappeared and its absence is causing chaos throughout her town.

A bear almost gives up his search for his missing hat until he remembers something important.

While fourteen-year-old Enola Holmes endeavors to save her friend Lady Cecily Alistair from an unwelcome arranged marriage, she meets with some assistance from her older brother, Sherlock, and interference by the eldest, Mycroft.