Last seen languishing in a prison cell and framed for a crime he didn't commit, Endeavour is compelled to return to duty when a young woman's baffling murder requires his singularly cerebral mind to solve.
Set in 1967 and picking up from the dramatic second series finale that saw Endeavour Morse placed in police custody, framed for a murder he didn't commit and DI Fred Thursday's life hanging in the balance after being shot.