A disembowelled body is discovered in a sewer. The team must establish whether a killer is at large, or if feral swine have returned to London's sewers. Chandler has to pull the detectives together after an abysmal team-building exercise.
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All episodes — Series 4
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S4 E1The Real Enemy (1)
Sep 4, 201345 min
A party is being held for the launch of Buchan’s first book called ‘A History of Murder in Whitechapel’. The team attend to offer him some moral support. A little old lady at the party makes pointed comments to the team which sour the eveni
S4 E2The Real Enemy (2)
Sep 11, 201345 min
A connection to a 16th century murder seems to confirm that someone is killing witches in Whitechapel, but the investigation is impeded when a link to present-day espionage attracts the attention of the security services. Chandler is on the
S4 E3The Force of Injustice (1)
Sep 18, 201345 min
Following the discovery of a flayed face in a local gallery, Chandler and Miles find themselves becoming involved in the contemporary art world.
S4 E4The Force of Injustice (2)
Sep 25, 201345 min
As more flayed bodies turn up, Chandler and Miles question the motives behind these bloody deeds. Buchan's research puts him in danger.
S4 E6To This End (2)
Oct 9, 201345 min
The hunt is on to find a gang of suspected cannibalistic killers lurking in the sewers before a missing girl becomes the next victim. The station is under attack and the forces of evil are moving against the team on all sides, and as the ca