4 seasons available
DC Rob Brady wakes up in his car with a witness lying dead next to him and is arrested on suspicion of murder; in his eagerness to clear Rob's name, DI David Bradford interferes with the investigation against DS Vivienne Cole's advice.
When Major Len Miller is found dead at the bottom of his stairs, a bloody fingerprint implicates his grandson; as David and Vivienne shed light on a dark secret from the major's past, they also must deal with the fallout from their indiscretion.
After young medical student Japesh Patel is stabbed to death, Billie wonders if it's connected to a similar, non-fatal attack on a gang member; tensions between David and Vivienne reach a breaking point.
A delivery driver is killed, and a trace of his movements places him at a pub that his wife frequents; she has a motive, but she's an alcoholic and can't remember if she killed him or not; when David doesn't turn up for work, Vivienne confronts him.
A boxer confesses to killing her manager, but the detectives think she may be covering for her father; when a suspect accuses David of planting evidence, he's devastated to realize the team has doubts, and he makes a decision about his future.
A series of murders point to a killer lurking within the police force; the case holds deeply personal ramifications for the team led by DI David Bradford, involving DS Cole's ex-husband and threats to DC Brady's family.
After the discovery of schoolboy Luis Moretti dead in a lake, the detectives learn of a potential connection to the recent suicide of a young girl; Vivienne shares her suspicions with David and reveals her past relationship with the chief.
After a locksmith's murder, Billie recognizes the victim, and the investigation forces her to wrestle with her personal and professional ethics; Vivienne pleads with her ex-husband to do the right thing, but he fears they're both in danger.
When the police inform a new widow of her husband's murder, she seems unaffected and points the finger at her brother-in-law, who points his finger right back; David tries to convince Mulgrew to reveal what he knows.
With the murder of another black police officer, the team suspects the killer cop harbors racial motivations and move quickly to save a high-profile target; David and Vivienne cross a huge line.
Construction workers find the remains of a young man who appears to have been strangled to death more than a year ago, but when his sister is notified, she claims he's been sending her postcards all the while.
When a boy finds his grandfather dead in a pub basement, he tells Rob that he was hit by a man with a baseball bat, but Vivienne doubts his story; Vivienne pressures Rob to report that he covered for David on the night of Sarah's disappearance.
While the team looks into the murder of a Portuguese au pair who was recently fired from her job, Vivienne and Rob start investigating David on the sly, but he remains a step ahead of them.
The detectives suspect a gangland hit when a father and son are shot execution-style in broad daylight, and worry the violence could escalate; David sees an opportunity to finally apprehend crime kingpin Adrian Cook.
In exchange for turning a blind eye, Adrian gives Rob the name of someone who knows where Sarah is, but that person turns up dead; believing Sarah may still be alive, David and his team race to her find her.
DC Rob Brady and Trainee DC Billie Fitzgerald respond to a gruesome scene where a man was found stabbed multiple times and left hanging from a tree.
After a bridegroom is killed at his bachelor party, the crime is reported by the would-be bride's ex-husband.
Detectives discover a man murdered on his houseboat was having an affair with his best friend's wife.
After a dead woman is found in a river, detectives track the suspect through a dating site only to find he might have shot himself.
With Billie stabbed and her attacker on the loose, Vivienne blames herself for not recognizing that Billie was in danger.