Reid and Long Susan are set on a collision course after a locomotive disaster.

A murder inquiry in a curiosity shop reveals a secret dungeon and signs of a captive girl.

Alex le Shayne, a mysterious clairvoyant is found dead at the local performance place. Jackson presumes poison has a part to play. As Reid is missing Drake steps in to investigate. Elsewhere Susan continues to care for Mathilda and plans to send her to Switzerland.

Ghosts of Whitechapel's past come alive, setting our heroes on a path of destruction.