All six episodes from the third and final series of the BBC drama starring Sarah Lancashire as a police sergeant in a rural West Yorkshire valley. Catherine Cawood (Lancashire) is on the verge of retirement when the discovery of a murder victim leads her back to a still incarcerated Tommy Lee Royce (James Norton). When she learns that her grandson Ryan (Rhys Connah) has been visiting him in prison, she is furious, especially when she realises her sister Clare (Siobhan Finneran) has been helping him.
After Tommy escapes from prison, he only has one goal in mind... Meanwhile pharmacist Faisal Bhatti (Amit Shah) is supplying prescription drugs illegally and trouble is closing in.