Following the young Endeavour Morse in his early day as an Oxford police constable working with CID, encountering Strange for the first time, and developing the notable personality traits he would latterly refine.
1966 brings Endeavour a fresh quartet of baffling mysteries set to test his brain and body to breaking point. Though offset by the possibility of love unlooked for, against a backdrop of growing change in Britain and the wider world, Endeavour must face a challenge that threatens to take from him all he holds dear... Family. Friends. Colleagues. The old order changeth... but not without a fight. To the death.