Inspector Morse is a melancholy, enigmatic and romantic man who never uses his first name and who finds solace in real ale, classical music and difficult crosswords. Together with his able Sergeant Lewis, Morse uses his considerable intellect and passion for the truth and justice to investigate death and murder in the English university town of Oxford.

In 1965, the young Detective Constable Endeavour Morse is recruited into the hunt for a missing schoolgirl and finds himself in the midst of a murder investigation.

The continuing stories of rookie Constable Morse.

The continuing stories of rookie Constable Morse. The young Endeavour Morse is on the case, before his signature red Jaguar, but with his deductive powers already running in high gear.

Following the finale of Season three, Oxford's finest are picking up the pieces of their personal and professional lives. DC Endeavour Morse awaits the result of his Sergeant's Exam, while DI Fred Thursday and his wife Win struggle to cope with their children flying the nest. With sam gone to the Army and the traumatized Joan gone off to who knows where, there are even greater challenges still to face.

As 1968 dawns, a year of change promises to disrupt the private and professional lives of Endeavour Morse and his colleagues. Endeavour's recent promotion leads him to reluctantly mentor new recruit Fancy, while Thursday is beginning to think about life after the police. But in Oxford, crime never sleeps, and the team continues to be challenged by mysterious and intriguing cases of murder, greed, and deception. Meanwhile, the rise of organized crime...

Inspector Morse, an Oxford detective, must go to Australia to locate the witness who provided evidence in a gang killing several years back.