The dying master of Porterhouse, a fictional Cambridge college, succumbs to a Porterhouse Blue - a stroke brought on by over indulgence. He is replaced by Sir Godber Evans (Ian Richardson), who at the annual Founder's Feast announces great changes to over six centuries of tradition - egged on by his zealous wife, much to the concern of Skullion (David Jason) the head porter, and the Fellows. In an attempt to prevent the radical changes, such as contraceptive machines, women students, and a canteen, a counter attack is planned by the Fellows and Skullion. He finds a reserve ally in old Porterhusian, Sir Cathcart D'Eath (Charles Gray). Meanwhile, Zipser (John Sessions) seeks confidential counselling with the Chaplain (Lockwood west) on his fixation for Mrs Biggs, the buxom bedder (Paula Jacobs). Sir Godber (Ian Richardson) is in a self-congratulatory mood. His plans to change Porterhouse have the traditionalists over a barrel. Investigative journalist Cornelius Carrington (Griff Rhys Jones) is brought in to help the defence of the traditionalists. Zipser (John Sessions) emerges from a drunken stupor in possession of four gross of condoms. His efforts to dispose of them provide the ageing Skullion (David Jason) with a memorably athletic night. But far more shattering developments are in store for the loyal college porter. After 45 years as head porter at Porterhouse College, Skullion (David Jason) has been sacked. With a view to ending the regime of the new master (Ian Richardson) the Dean (Paul Rogers) and Sir Cathcart D'Eath (Charles Gray) encourage Cornelius Carrington a famous T.V. presenter to make a documentary about the college. They haven't reckoned on Carrington's methods, or on Skullion's gift for television verite, and nobody, not even Skullion has reckoned on the head porter achieving an indelible place in the history of Porterhouse.