6 September, 1894, a bored Sherlock Holmes stares out his window. The detective is going through another frustrating dry spell where no case has presented itself worthy of his talents. He's about to get his wish. Sherlock soon realises that there is much more to this case than even he could've imagined when he initially began. His search for answers will take him not only to 'The Continent' but across the Atlantic to America itself, unravelling a dark plot along the way.