Annika Strandhed is the head of a new Marine Homicide Unit in Glasgow that starts its work early when a body is found in the water with a harpoon through its head. Plus, Annika must help her daughter acclimate to a new life.
Susan Ryeland is a book editor whose best-selling author is a mystery novelist. The final chapter of his latest whodunnit is missing from the manuscript, a complication that becomes worse when the author turns up dead.
Eliza and William are growing closer, but when she reopens one of his cases it strains their relationship. But Eliza feels she must investigate the unsolved disappearance of a desperate woman's sister from her department store job.
After a promising young cellist is killed in a brazen attack, Van der Valk and his team are drawn into a case that has implications for powerful people across the globe—who will do anything to stop information from becoming public.
When the three children of a wealthy diamond family each find parts of a dead employee at their home, Van der Valk and his team investigate the people who surround them as the company goes through a transition in the wake of the matriarch's death.
A highly staged death of a lawyer who has just won a case against an alternative community leads Van der Valk and his team down an investigation that references Amsterdam's history and famed philosopher, Baruch Spinoza.
Can Max and Erin and Roy exact revenge, or escape a world that keeps pulling them back in? Can Kenny find happiness? Will Jackie be successful in her quest with the help of Yvonne, and will Maggie escape unscathed?
Max and Erin lay out a scheme to take down Roy, while Yvonne is drawn deeper into investigations against several people and Kenny gets caught in the complications. Teddy continues to search for his brother's killer, terrifying everyone.
The plot gets ever more complicated as Max begins to investigate Roy and his business dealings, a fellow prisoner asks Max to look into a death, Kenny and Max run up against a priest, and Yvonne looks into her suspicions about Stevie.
Max is out of prison and trying to build a new life—but that involves taking on his old life and partnering with Kenny while also accepting work from Roy Lynch. He's soon embroiled in another unexpected death with many ramifications.
Bonnie is considering leaving Grantchester with Ernie, but she's still holding out hope that something will work out with Will first. That's if the vicar can survive a threat after a seemingly solved case resurfaces, to Geordie's deep guilt.
Robert is becoming paranoid as attacks against his wife continue and he begins to turn on his own advisers, who are beginning to think about leaders who might succeed him. Things continue to go badly in Kent.
Cathy leads a strike for equal pay that leads to a confrontation between her and Geordie, while Will and Geordie investigate a death and disappearance at a local nursing home and Will tries to understand his desires.