Endeavour

It's 1971 and crime in Oxford is ever-present. Still reeling from the events of the past year, CID investigates suspected IRA retaliations, the murder of a local cabbie, and the peculiar murder of a college don which leads to imminent danger. So much for light duties! But, as Endeavour shows signs of struggle with his inner demons, the team wonders if he has gone beyond the point of no return.