A strange clue in an empty room, a blood-soaked car, a priceless Old Master, a deranged bomber. With the clock ticking, the curtain rises on a battle of wits between Sherlock, John and the shadowy stranger who seems to know all the answers...

A hound from hell. Sherlock's most famous case. But is a monster really stalking Dartmoor?

Anderson believes that Sherlock is still alive after the Reichenbach fall. He confides in Lestrade and tells him his theory for his existence. Anderson believes a string of events ranging from Tibet to India to Germany involve Sherlock's assistance, and this is due to Sherlock not being able to stop investigating. Lestrade tells him Sherlock is definitely dead and goes to visit John, who has moved out of Baker Street following his death. He gives him some of Sherlock's old items, including a video message from John's birthday. In the message Sherlock states that he will see John very soon and tells him to have a good birthday without him as he is 'busy'.

Two years on from reports of his Reichenbach Fall demise, Sherlock resurfaces as London comes under threat of a huge terrorist attack. John, though, has mixed feelings – he's delighted by the return of his best friend, but harbours worries that the consulting detective's reappearance will have an adverse affect on his settled domestic life, in particular his romance with Mary Morstan.

Sherlock faces his biggest challenge of all – delivering a Best Man’s speech on John’s wedding day! But all isn’t quite as it seems. Mortal danger stalks the reception – and someone might not make it to the happy couple’s first dance. Sherlock must thank the bridesmaids, solve the case and stop a killer.

Sherlock Holmes and Doctor Watson investigate a mysterious ghostly bride who appears to have committed murder from beyond the grave.

Why is someone destroying images of Margaret Thatcher? Is there a madman on the loose? Or is there a much darker purpose at work?

Holmes and Watson travel to Europe to escape Moriarty's vengeance.