The critically acclaimed drama returns for six more riveting episodes. In this season, DC Kate Fleming and DS Steve Arnott of AC-12 investigate the conduct of Sergeant Danny Waldron of the Armed Response Unit.

DS Jack Weston and DC Charlie Steele are shocked when their boss, DI Martha Bellamy, is shot dead in her home. DCI Daniel Drummond joins Jack and Charlie to lead the investigation into Martha's murder, also bringing in detectives Alisha Brooks and Gary Roscoe. The new team soon realizes that Martha's murder could be connected to a cold case she was investigating. Could one of those suspects have killed her?

In the thick of a career-defining case, Roz is under intense pressure to prove herself to her superiors. But when she faces conflict with a colleague, it's not long before AC-12 decide to probe her handling of the investigation.

Underdog detective 'Dangerous' Davies toils at a small London police station, where his slicker colleagues taunt him and his boss calls him the last detective he would put on a big case. That makes it all the sweeter when he cracks the big ones anyway.

Haunted by the failure to catch Jack the Ripper, Inspector Edmund Reid is charged with keeping order in the blood-stained streets of Whitechapel. Reid and his men find themselves fighting to uphold justice and the rule of law. But always in the background lurks the gear of the Ripper.

"Detectives Martha Bellamy (Fay Ripley, Cold Feet), Jack Weston (Damien Molony, Being Human), and Charlie Steele (Clare-Hope Ashitey, Children of Men) are back to solve a series of all-new mysteries in contemporary London. From an arson attack that leaves a teenager fighting for his life to a copycat murder that could be the work of a serial killer, Martha and her team work tirelessly to expose the truth behind each crime. Filmed from an eyewitness...

"Tennison seizes the opportunity to head a murder investigation--something she should have done long ago, had she not been passed over by her male superiors time and again. With a suspect already identified and her own team openly hostile, she uncovers errors and conflicting facts that point to a coverup within the force."--Container.

Series follows anti-corruption unit 12 (AC-12) as they investigate fellow police officers accused of corruption. In series five, Stephen Graham stars as John Corbett, the ruthless leader of an organized crime group who hijacks a seized drugs transport. AC-12 investigators suspect corrupt police officers of leaking information. As the body count rises, AC-12 realize they₂re facing their most vicious adversary yet.

Fresh off his success catching a headline grabbing killer, DCI Colin Sutton is on the brink of retirement when he's asked to review the long running inquiry into another infamous predator. Known as "The Night Stalker" to the press and "Minstead Man" to the police, this serial rapist has stalked the elderly of Southeast London for nearly two decades.

"One of Britain's most thrilling series" (Entertainment Weekly) returns as the elite squad of detectives begin investigating a string of murders with links to the police force. Could the killer be a fellow officer? The case has deeply personal ramifications for the team led by DI David Bradford, involving DS Vivienne Cole's ex-husband and threats to DC Rob Brady's family. As they try to discover if a murderer lurks among their ranks, the detectives...