A dying mother's life lessons to the husband and sons she left behind. Based on the best-selling novel by St John (Singe) Greene, the film is the story of Singe and Kate, a couple from North Somerset, whose lives were turned upside down when Kate was diagnosed with an incurable breast cancer. Over her last few days, she created her list: writing her thoughts and memories down, to help the man she loved create the best life possible for their two sons, after she was gone.

After a hostage rescue goes wrong, superintendent Sandra Pullman is put in charge of unsolved crimes. With little resources and no back-up she decides to recruit three ex policeman. However times have changed, unlike her new recruits. Jack Halford is yet to get over the loss of his wife, Brian Lane is over obsessed and over medicated, and Gerry Standing is not quite the ladies man he used to be. They may have the experience but it's not like the old days. Not only are they chasing criminals, but they are having to deal with a new police force which does not always appreciate their old style policing.

In mid-19th century Yorkshire, Hannah Boyle is left with the family of Matthew Thornton, the man her dying mother claims fathered her...