An explosive murder at an Oxford college has potentially far-reaching political ramifications. Meanwhile, Endeavour is tasked with guarding the life of a beloved football team's star striker.
It's the summer of 1971. Endeavour and the team are called to investigate the murder of a cab driver on the outskirts of Oxford. Meanwhile, Endeavour receives a guest at home who reminds him of a past he'd sooner forget.
The team investigates the violent and peculiar murder of an Oxford college don; when Thursday makes an unexpected discovery, Endeavour's suitability to work on the case is compromised and he is side-lined.