The Best Episodes Written By Gaby Chiappe

Vera investigates the case of a murdered social worked named Jenny Lister, who was universally considered to have been principled and popular. However, in an overworked and understaffed social work system, a notorious case involving the death of a child seems to hold the key to solving the killing. As Vera pursues the truth, she discovers the real secret at the heart of Jenny's death - and the killer who will stop at nothing to keep it hidden

Detective Inspector Jimmy Perez believes he and his team are finally closing in on the killer as they discover what 17-year-old Catherine Ross was hiding from everyone in the hours before her death.

When a young man disappears on the Aberdeen to Shetland ferry crossing and a small boy ends up in intensive care, DI Jimmy Perez and his team investigate, becoming convinced the two events are connected.

Detective Sergeant Nancy Devlin is a good cop with a dark secret - a loyalty to haulier and drugs trafficker Frank Le Saux, to whom she has been close since childhood.

Mistrustful of her colleagues, Nancy needs an ally but fears that if she opens up to Hayley it will put them both in danger. Nancy is then unexpectedly forced into the spotlight when the police make a public appeal.

Nancy visits the latest suspect, garage owner and Le Saux associate Duncan Elliot, where she spots Theo Kettler's missing car. A vital piece of evidence is later recovered from the vehicle, giving DCI Newman a breakthrough - but placing Nancy in even greater danger. Meanwhile, tensions surface among the Le Sauxs when Hayley and her brother Tate inherit the haulage yard.

Stood down by Newman for being too emotionally involved, Nancy is forced to operate outside the law to prove her case against Nash.

Nancy finally sees the truth, but struggles to persuade Newman she is right. With nothing to lose, she must operate outside the law one last time.

Old wounds are painfully reopened for the shocked residents of Ravenswick, as Detective Inspector Jimmy Perez and his team look to a past crime to solve the present day murder of a young teenage girl.

The murder investigation takes Perez and Tosh to Glasgow as they try to uncover the reasons behind Maguire's brutal death and his connection to Robbie Morton. But old ghosts return to haunt Perez as his enemies try to prevent him from getting to the truth.

Perez struggles to deal with what has happened to Tosh as he continues to investigate the murders of Robbie Morton and Michael Thompson, but a shocking discovery finally leads him to the identity of who Thompson was going to testify against.

Perez and his team are determined to track down the person who helped Michael Thompson's killer on Shetland. But the closer the team get to the truth in both Shetland and Glasgow, the more dangerous it becomes for all of them.

As the investigation reaches its final stages, Detective Inspector Perez and his team discover the person responsible for the deaths of Robbie Morton and Michael Thompson is closer to home than any of them thought.

An unexpected discovery in ladieswear causes ripples throughout the store.