Deliberate contamination is suspected in a sudden cholera outbreak . Emily's search for a charity patron proves difficult.

The brutal clearing of a local slum for the underground railway reveals an almost indecipherable murder scene and an unreliable slum girl witness. Lucy Eames, beautiful and disturbed, is the unlikely key to a Byzantine web of conspiracy.

International haulage tycoon TP Swift arrives in town to acquire an ailing shipping line, accompanied by a team of private detectives, who proceed to cut a violent swathe through the borough on a mission of vengeance. As Reid focuses on the murder of an engine inventor, Jackson and Susan's past comes back to haunt them, bringing their future in Whitechapel - and their very lives - into question.

Reid is adrift, his team in pieces and Leman Street shaken to its foundations following recent events. A kidnapping offers him cause to assemble his men and tackle the white slavery ring operating in their midst. But Reid is gripped by a growing obsession that this leads back to the terrible secret from his own past.

A valuable symbol of the British Empire’s wealth shows up in the form of an uncut diamond. It is a jewel ‘freed’ from the diamond monopoly of De Graal by one Daniel Judge, Captain Jackson’s untrustworthy older brother. Reid and Flight find themselves being drawn to the plight of a local craftsman defrauded of his work and income by a scam that is set to return H Division to the malign influence of Detective Inspector Jedediah Shine.

Death and violence comes to Whitechapel once again. Some decayed and murdered bodies are discovered in a slum tenement, and the advanced stages of the police divisional boxing championship reveals the vengeful ferocity to be seen within the ranks of the police force.

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.

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