Episode 1

Blackmailed and sidelined from investigating, Sherlock Holmes finds hope when a young woman arrives on his doorstep, potentially holding the key to solving the kidnapping of an ambassador's daughter.

Episode 2

While Sherlock chases a stolen carriage, he sends Amelia on a hunt across London; Amelia has her own ideas and follows her intuition closer to answers but even closer to danger.

Episode 3

Amelia goes under cover to search for clues at Clara's home; Sherlock goes to prison under pretense of meeting his forever foe, Moriarty.

Episode 4

Amelia withholds details from Holmes after encountering a charming man with a pistol, but Sherlock must step in when her investigation turns fatal.

Episode 5

Sherlock searches for the missing jewels and their connection to the kidnapping of his friends; he turns to the insurance investigator, Birtwistle, for his assistance.

Episode 6

As Sherlock and Amelia identify the villains surrounding them on all sides, Holmes repays a favor to his oldest enemy, arranging a meeting between Professor Moriarty and the young Australian man who has suddenly become very close to Amelia.

Episode 7

Having cracked the code of the Red Thread's communications network, Sherlock is hot on the path of the kidnap victims, chasing a trail of breadcrumbs that leads all the way to the vaults of the Bank of England.

Episode 8

Having unmasked the Red Thread syndicate, Sherlock and Amelia must confront their enemies at the most anticipated debutante ball of the season.