Long buried secrets finally come to light as someone has been playing a very long game indeed. Sherlock, (y/n) and John face their greatest ever challenge. Is the game finally over?
Sherlock faces one of the most chilling enemies of his long career: the powerful and seemingly unassailable Culverton Smith - a man with a very dark secret indeed
As Sherlock waits to see Moriarty's next move, he takes on the case of finding someone who is going around and smashing six unique head statues of Margaret Thatcher.
Mycroft calls Sherlock back to London to investigate an underground terrorist organization. He also reunites with his best friend, John Watson and his girlfriend, (y/n) (l/n).
Mycroft needs Sherlock's help, but a remorseless criminal mastermind puts Sherlock on a distracting crime-solving spree via a series of hostage human bombs through which he speaks.