Pylon: With the Cowley team scattered across Oxfordshire, Endeavour finds himself policing a lonely country patch, and back in uniform. His day job is a monotonous investigation of missing livestock and stolen tractors. But when he discovers the dead body of a missing schoolgirl, it opens this quiet backwater to the roar of Castle Gate CID – now staffed by Thursday and an old adversary, the newly promoted DCI Ronnie Box, alongside sidekick DS Alan Jago. Box is keen to get Endeavour out of the picture, but when Endeavour’s own investigations manage to uncover a potential suspect – a homeless drug-fuelled teenager named Stanley – Box dangles the suggestion that the arrest could be Endeavour’s way back into CID. However, when Thursday reveals to Endeavour that he knows the suspect from an old murder case, they start to worry that they have the wrong man. With Thursday’s hands tied, Endeavour resolves to prove the teenager’s innocence and uncover the truth behind the young girl’s murder.