When the matriarch of a well-known criminal family tries to commit suicide, Nick and Kate take in her children. After recovering, she tells Nick that her husband is in prison for a crime he did not commit, and Nick offers to help her get closure by re-investigating the case. Blaketon is against it, especially when it becomes apparent that his predecessor was somehow connected and retired soon after. Meanwhile, PC Phil Bellamy is delighted when his girlfriend falls pregnant and proposes. On his stag night, he is assaulted outside the Aidensfield Arms. With Gina and Greengrass's help, he tries to track down his attacker.

Marjorie Doubleday is convinced that her daughter-in-law, Rita, is neglecting her young grandson, causing a rift in the Doubleday family which gets a lot worse when the baby is abducted from outside the shop. Nick and the team are forced to investigate the possibility that Marjorie may have kidnapped her own grandson. The villagers think a gang of hippies are to blame, and the case becomes more complicated when a patient of Kate's who is unable to have children is reported missing. Meanwhile, Greengrass buys a racehorse and begins training it up, but he once again incurs the wraith of Blaketon when the horse runs wild around the village.