A homosexual man is found beaten to death and his adopted son has gone missing. Brooks and Casey arrest the child's biological parents, who give conflicting stories. Kate Barker's emotional investment in the case threatens to undermine the prosecution.
An elderly woman is found dead in her flat, apparently killed during a robbery gone wrong. The dead woman's granddaughter, however, implicates the live-in carer, who in turn suggests that the granddaughter had tried been trying to starve the woman to death.
Brooks and Casey investigate the death of a woman whose body is recovered from the Thames. Initial enquiries focus on the dead woman's abusive ex-husband, but when they uncover a relationship between her second husband and her daughter it suggests a possible motive for murder.
The estranged father of a boy with leukaemia is found shot dead in his hotel room. DSs Casey and Brooks discover that the dead man was carrying a number of secrets, and turn their attention to the dead man's father-in-law.
DI Wes Leyton and DS Ronnie Brooks investigate the death in his court cell of Finn Tyler. The suspended DS Casey spends the day with his son. New colleagues Jake and Kate get to know one another over drinks.
A suicidal man drives across a railway line, causes a fatal train crash, although he survives. His defence barrister, Kate Barker, argues that he is not culpable by reason of mental illness. When the defendant is found dead in his cell, DS Casey is implicated. Henry Sharpe decides to recruit Kate to the CPS.moreless