Disturbance, The World Flight Championship! Episode 22

A man and his wife go out to celebrate the completion of an airplane engine for an upcoming race only to find when they come back that Moriarty has stolen the engine for his own use! A day before the race begins, a mysterious new entry appears in the race. Holmes knows it must be Moriarty and so he, Watson and Mrs. Hudson take to the skies to stop Moriarty from causing the race to be a complete disaster.