Detective Constable Endeavour Morse becomes drawn into a murder investigation that changes the course of his life.

DC Endeavour Morse and DI Fred Thursday investigate a series of murders and other mysteries in 1960s Oxford, England.

Endeavour and his colleagues are entering a new decade and era of change. Opening on New Year's Eve 1969, normal order has been resumed and the team reunited at Castle Gate CID, with Chief Superintendent Bright back in charge. However, the events of the past year have left their mark. Old friendships will be challenged, and new relationships will blossom.