Internet hackers access the camera of a laptop belonging to a teenager, Kenny, and blackmail him and others into complete an increasingly dangerous set of actions.
When Drake realizes that Reid intends to look into Dove's ties to the Whitechapel Golem, he grudgingly listens to Miss Castello's evidence. As they put the pieces together, they discover Susan is alive and Jackson is involved in the attempt to free her. Dove anticipates Drake's discoveries and gets Rose to give up the location of Theodore Swift. To get ahead of the game, Dove attempts to have Reid and Drake arrested for Swift's murder but they out fox him and take their evidence on the run. Reid and Drake are determined to expose Nathaniel and show how Dove covered up for him.moreless
Rose sees Susan at her window and thinks she is intent on returning for her son, but Drake doesn't believe her. Elsewhere, a bite mark on the body of Thomas Gower brings the cause of his death into question. When a another body shows up with the Golem bitemarks, Reid realizes that Drakes's case against Isaac Bloom points to police corruption.moreless
Drake come face to face with Thomas Gower, a person from his past, after the death of a footballer from the Thames Ironworks. With Drake believing in Gower's innocence, Reid works his own theories behind Drake's back. Reid lets Drummond know he's keeping an eye on him as he attempts to woo Mathilda. Susan hatches a plan with Nathaniel and Crocker to steal from the Customs House so she can fund her escape with Jackson. Although Jackson is opposed, Susan plans to take Connor with her when she leaves.moreless
Reid, Drake and Jackson investigate when a man is found upside down, drained of his blood, and a women found nearby also exsanguinated. They surmise it to be some sort of scientific experimentation. These new killings threaten Jackson's plan to keep Susan hidden. After a heart-to-heart with Rachel Castello, Mathilda uses the latest novel, Dracula, as a tool to attract Sergeant Drummond.moreless
Reid finds it difficult fitting back in at Lehman Street, as he battles the new bureaucratic policing system and Drake. Reid helps a wandering Leda Starling look for her lost boy and finds there are other missing boys from the Union Workhouse. As Drake looks into the murder of a Salvation Army captain, Jackson keeps up his pretense of grieving for Susan who is still alive and hidden at the docks with Abel Crocker. Rose has difficulties dealing with Connor.moreless
The Sand Snakes attack; Arya continues her training; Jaime and Bronn reach their destination; Trystane and Myrcella discuss their future; Jorah and Tyrion have a run-in with slavers.
The Faith Militant grow increasingly aggressive in King's Landing. Jaime and Bronn head south. In Dorne, Ellaria and the Sand Snakes vow vengeance.
Arya arrives in Braavos; Brienne and Podrick find danger while traveling; Cersei worries about Myrcella in Dorne when Ellaria Sand seeks revenge for Oberyn's death; Jon is tempted by Stannis.
In King's Landing, Tyrion welcomes Prince Oberyn Martell of Dorne for the royal wedding. Elsewhere, Jaime readjusts to life after his imprisonment. Up North, Jon shares what he learned beyond the Wall as the wildlings continue to plan their attack. Meanwhile, while with the Hound, Arya runs into an old friend. And on the road to Mereen, Daenerys and her army find gruesome markers for the city.moreless
As a final final reckoning between the chiefs of H Division and K Division becomes inevitable, Jackson's desire to use the the stolen diamond to finance his future leads to conflict with the De Graal monopoly.moreless
H Division investigate a long-firm scam targeting local craftsmen. Meanwhile, Silas Duggan ups his hold on Susan's life and Captain Jackson's brother pays him a visit.
DI Reid suspects that the same person is behind a spate of arson targeted at both synagogues and churches. Meanwhile, Sergeant Drake's married bliss is interrupted when an old friend of his wife, Gabriel Cain, appears.moreless
A vice ring at the offices of the GPO are uncovered during the investigation into the murder of a telegraph boy. Meanwhile, Captain Jackson attempts to find a way for him and Susan to clear themselves of the debt they owe Silas Duggan.moreless
When a high-profile opponent of Home Rule is murdered shortly after an Irish bomber escapes from prison, Chief Inspector Abberline is convinced that the Irish Republican Brotherhood is active again. Reid is ordered to infiltrate Whitechapel's Irish community.moreless
Drake is re-united with Rose when a prominent council member is abducted from the the music hall where she now works.
The team are led into the world of circus freak shows following the murder of a woman with a tail-like protrusion at the base of her spine. With the assistance of Joseph Merrick, better known as the Elephant Man, Reid realises that his Limehouse colleague, Jedediah Shine, also has some involvement in the case. Meanwhile, DC Albert Flight arrives to replace Albert Hobbs.moreless
When one of the sergeants from K Division is assaulted DI Reid's investigation leads him and his team to Chinatown and a new and destructive opiate.
Robb and Catelyn arrive at Riverrun for the Tully patriarch's funeral. In King's Landing, Tyrion receives new responsibilities. On their journey South, Jaime and Brienne run into trouble. North of the Wall, Jon and the wildlings reach the Fist of the First Men. And across the Narrow Sea, Daenerys meets the slavers of Astapor.moreless
Up North, Jon meets the King Beyond the Wall. In King's Landing, Tyrion seeks his reward after the Battle of Blackwater and Cersei entertains the royal family. Elsewhere, Daenerys journeys into Slaver's Bay.moreless
A kidnapping gives Reid the opportunity to recover recent events and re-build his team, when tackling a white slave gang. However, a secret from his past comes back to haunt him.
The murder of a brilliant engineer is discovered, just as a shipping magnate arrives in London to acquire a failing English company.
When a Jewish anarchist is killed during a strike at the docks, Reid's team are called in to investigate.
While Drake's one-time colonel returns to London in order to redress the unfair treatment soldiers have received, Reid and his team investigate a series of robberies.