At 8.0 am on New Year's Eve 1973, two ambulancemen called Jim Grummett and Colin Birch crossed the picket lines outside Sunderland Ambulance Depot and reported for work. From that day to January of this year the men were sent to Coventry' by their work-mates. Was it simply a case of obstinacy? Or bloody-mindedness? This Inside Story of a conflict of ideologies analyses the roots of the feud, and it portrays what happens in the hearts of ordinary men, when the unyielding force confronts the immovable spirit.