Series 1, Episode 1: Stochastic Dominance
2005: Sabine Moriarty's estranged brother, Jim, uses the 7/7 attacks as an pretext to reconnect. She reluctantly agrees to meet him, hoping that in the years of their separation he has recanted his criminal ways and turned over a new leaf. He hasn't. He has a new project, and wants her help— to be the undoing of Sherlock Holmes.
In the 1970s, young Jim tries to send his sister to a magical land.