DS Satchell is desperate to save his wife and child, and wants Walker to confront the gang, but the superintendent is wary of the mole he believes to have been leaking intelligence to the Bilkins. Walker and Connor are under pressure to find the evidence to bring down the family before Satchell can take the law into his own hands.moreless
A shop manager is shot during a jewellery raid, and an accomplice to the killers turns informer, revealing the culprits to be a notorious crime family - but then the informant is himself shot dead. DS Satchell witnesses the crime, and soon finds that his life and that of his family are in danger, but can find no safety from the influence of the crime family who wish to keep him silent.moreless
Despite the murder of the fairground owner, police find the fairground workers uncooperative, and efforts to implicate the property development company are initially inconclusive. Walker elects to concentrate police efforts on the death of the ferris wheel victim.moreless
A young girl falls from a ferris wheel to her death at the local fair, which is initially thought to be nothing more than a tragic accident. But then Satchell's aunt, who is a fortune teller at the fair, approaches the team saying she believes there is more to it. Before long a second death occurs, and her suspicions seem justified, leading the team into a murder inquiry.moreless
Imogen attempts to flee the country to escape the attentions of the drug-dealers. Connor has an unhappy time assigned to the drugs squad, and her relationship with DCI McGill threatens to undermine the investigation.moreless
An ambulance is run off the road and the patient being transported inside is shot in the head. The victim is revealed to be Sebastian Cole, and the media interest is high as he was engaged to Imogen Buller-Turi, who was a favourite with the tabloids, prompting Walker to intrude on Connor's investigation as it becomes clear that the murder is not a simple case of road rage, which leads Connor to reluctantly accept an alliance she would rather not commit to.moreless
Andy Harper hangs himself and Darren reveals that they had been lovers. Darren is acquitted of murder, but DCI Connor remains convinced of his involvement in the girl's death.
The body of a teenage girl, Maria Cole, is discovered in a chalk pit, and the tracks of three different vehicles are discovered at the crime scene. They eventually lead D.C.I. Connor and D.C.S. Walker to the local hardman, Ray Harper. His son Andy and his friend Darren admit being at the pit on the same night, though they claim that they never saw the girl there. However, cracks soon appear in their story when CCTV footage reveals that they crossed paths with Maria before her death, leading to the two boys being charged with her murder.moreless
Walker charges the mother of the mummified baby with the murders, but D.S. Satchell wonders whether the father should also be charged.
Walker is assigned to investigate the discovery of a 17-year-old skeleton, which he isn't too happy about - especially as he's working with D.I. North's ex-boyfriend. They soon discover more skeletons buried at the house.moreless
New eye-witness testimony and a television documentary about the McCready case casts doubt on the original murder investigation. Det. Supt. Walker is suspended from duty, and decides to return to Glasgow to find new evidence to prove his innocence, in order to save his career, relationship and reputation.moreless
D.I. North re-investigates an eight-year-old murder case and finds that Det. Supt. Walker was in charge of the original inquiry. The man convicted of murder continues to assert his innocence.
Warrington, increasingly unstable, abducts D.I. North and takes her to the site where Cassie Booth is buried. The case against him should be straightforward, but questions remain as to Wilding's involvement.
A fifteen-year-old girl goes missing and her blood-stained clothes are found. Det. Supt. Walker heads the investigation into her murder. Meanwhile, D.I. North is sent to see a persistent complainer, Warrington, who has been hounding the station. North begins to get stalked and Walker has a prime suspect for the murder. But then they find a connection between Warrington and Walker's prime suspect.moreless
Damon Morton is on trial for murder, but his strange hold over those he knows makes securing a conviction problematic.
When Susan Harrow does not come home, her mother reports her missing to the police. Her body is later discovered on waste land and a murder investigation is launched, once again headed by Det. Supt. Walker. There is later a second murder and they know that they have a serial killer on their hands.moreless
The prosecution case against Dunn starts to fall apart, but a witness called by the defence sets detectives on a hunt for an item that may have been used in the attack.
A five-year-old girl goes missing and the police are called in to search. When her body is found inside a sewage pipe, it becomes a murder investigation, which is headed by Detective Superintendent Walker. They follow a few leads and eventually arrest a suspect, who is then sent to trial.moreless