Holmes and Watson board a passenger train bound from London to Edinburgh, to guard the Star of Rhodesia, an enormous diamond worth a fortune belonging to an elderly woman of wealth; but within the first hour of the trip, the woman's son is murdered and the diamond stolen and any of the passengers in their car could be the killer thief.

A convicted thief in Dartmoor prison hides the location of the stolen Bank of England printing plates inside three music boxes. When the innocent purchasers of the boxes start to be murdered, Holmes and Watson investigate.

Arthur Conan Doyle reveals the story behind Sherlock Holmes and his mysteries by telling about Dr. Joseph Bell, from whom he drew his inspiration, after meeting him as a medical student in Edinburgh. This TV movie served as the pilot for the later released minisseries Murder Rooms: Mysteries of the Real Sherlock Holmes produced by the BBC. The series then picks up with Sir Arthur Conan Doyle's time as a general practitioner in Southsea, solving mysteries with the help of his mentor, Dr Joseph Bell, who is still based in Edinburgh.

Two dubious characters disguise themselves as Holmes and Watson to gain attention and end up chasing counterfeiters and stolen stamps.

Extremely condensed version of the Mark Twain story of a royal heir and his poor doppelganger trading places.

The Good Comrades are a collection of varied gentlemen who crave one thing - solitude. They reside at Drearcliff House, ancestral home of their eldest member. All seems serene and convivial until one by one the members begin to perish in the most grisly of manners. Foul play is suspected by the Good Comrades' insurance agent, who turns to Sherlock Holmes and Dr. John Watson for guidance.

The famous Borgia Pearl, a valuable gem with a history of bringing murder and misfortune to its owner since the days of the Borgias, is brought to London, thanks in part to Sherlock Holmes. But before long the jewel is stolen, due to an error on Holmes' part, and shortly thereafter, a series of horrible murders begin, the murderer leaving his victims with their spines snapped and surrounded by a mass of smashed china.

When a woman is found dead with her throat torn out, the local villagers blame a supernatural monster. But Sherlock Holmes, who gets drawn into the case from nearby Quebec, suspects a human murderer.

When a bored Sherlock eagerly takes the case of Gabrielle Valladon following an attempt on her life, the search for her missing husband leads to Loch Ness and the legendary monster.

After being captured by T-Man Jack Blaisdell and sentenced to 20 years of hard labor on a counterfeiting rap, Tiger McGuire is sprung from jail by his old gang. Vowing to get even with Jack, Tiger kidnaps the young man's fiancée, Helen (Holmes), bringing the girl to his hideout, a fancy yacht owned by Lucy Carlisle.

England, at the start of World War Two. Mysterious wireless broadcasts, apparently from Nazi Germany are heard over the BBC. They warn of acts of terror in England, just before they take place. Baffled, the Defense Committee call in Sherlock Holmes.

When a nobleman is threatened by a family curse on his newly inherited estate, detective Sherlock Holmes is hired to investigate.