With Alfred no longer willing to hide, Uhtred must get word to Saxon forces to help make a stand against the Danes and save Wessex.
When the Danes attack the castle, Uhtred and the king are driven to the marshlands.
Uhtred and Leofric lead a raiding party to Cornwall. There, they become mercenaries for a Cornish king whose sorceress wife takes an interest in Uhtred. On returning to Wessex the king is furious and commands a dire punishment.moreless
Uhtred takes on a dangerous stealth mission and is left with no choice but to face the formidable Ubba.
Alfred's manipulation of Uhtred leaves their relationship in a poor state. Meanwhile a terrible battle looms over Wessex.
Uhtred proves his worth to Alfred but is forced into taking an English wife, which doesn't bode well for his relationship with Brida.
Uhtred and Brida are on the run from his uncle who blames them for his brother's death. They track down and try to plead their innocence to the viking warlord Ubba.
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
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
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 14-year-old is accused of killing a toy maker, Inspector Reid must delve into the violent world of child gangs.
Chief Inspector Frederick Abberline is worried that 'Jack' has started a fresh killing spree when a young woman is found in the same state as the previous victims.