As WW2 rages around the world, DCS Foyle fights his own war on the home-front as he investigates crimes on the south coast of England. Later series sees the retired detective working as an MI5 agent operating in the aftermath of the war.
Two hunters, one cold, deliberate and highly efficient and the other, a strong, athletic man with a wife, two children and a counselling job... one of them is a serial killer and one is a cop. Seasons 1 and 2 are outstanding, but you might want to give the third season a pass.
The story about the murder of an 11-year-old boy, Rhys Jones in Croxteth, Liverpool, in 2007 and his parents, Melanie's and Steve's ordeal, and how Rhys's murderer and associates were eventually brought to justice.