Ep. 9: Royal Navy requests Hound and Watson to recover a submarine stolen by Professor Moriarty
Aired on January 15, 1985

The Royal Navy approaches Hound and Watson with a request for assistance in retrieving a submarine that was stolen by Professor Moriarty. The two individuals are tasked with helping the naval forces recover the vessel. This mission involves locating the stolen submarine and working alongside the Royal Navy to resolve the theft. The synopsis outlines the specific objective assigned to Hound and Watson by the naval authorities.
Episodes
- Ep. 5 · Hound and Dr. Waston attempt to rescue Polly from Professor Moriarty.
- Ep. 6 · A mysterious green balloon arrives at Hound's home with a distress message.
- Ep. 7 · Moriarty's theft of a gold statue leads to a chase at the docks
- Ep. 8 · A young woman returns to England from America and discovers her uncle has changed significantly.
- Ep. 9 · Royal Navy requests Hound and Watson to recover a submarine stolen by Professor Moriarty
- Ep. 10 · Hound, Watson, and Mrs. Hudson investigate sabotage of England's new Air Mail service to Europe.
- Ep. 11 · Sherlock Hound and Watson investigate the missing twenty Sovereign Gold Coins
- Ep. 12 · Hound shadows a cash carriage after police sabotage prevents escort
- Ep. 13 · Hound investigates the mysterious disappearance of a freight car on a train to London