Jim Dixon feels anything but lucky. At the university he has to do the bidding of absent-minded and boring Professor Welch to have any hope of keeping his job. Worse, he has managed to get entangled with unexciting but neurotic Margaret Peel, a friend of the Professor's. All-in-all, the pub is the only friendly place to be. His misery is completed at a dreadful weekend gathering of the Welch clan by the arrival of son Bertrand. Not so much that Betrand is loud-mouthed and boorish - which he is - but that he has as companion Christine Callaghan, the sort of marvellous and unattainable woman Jim can only dream about.

A government team researching cures for plague find their results put on the Official Secrets list. One of their number is so incensed by this that he lets the maimed and jealous companion of a female colleague draw him into what, technically, could be a treasonable act.
Tony Britton ... Dr. Robert Marriott
Virginia Maskell ... Dr. Lucy Byrne
Ian Bannen ... Alan Andrews
Kenneth Griffith ... Dr Shole
Peter Cushing ... Professor Sewell
Thorley Walters ... Special Agent Prince
Donald Pleasence ... Parsons, alias Bill Brown
Spike Milligan ... Arthur, lab orderly
Raymond Huntley ... Sir George Gatting, the Minister of Defense
Sam Kydd ... Slater
Anthony Booth ... Parkin
Basil Dignam ... Dr.Childs
Brian Oulton ... Director
Robert Bruce ... Levers
John Payne ... Iverson

Newly qualified barrister Roger Thurnsby finds his first few appearances in court land him in all kinds of trouble...

The boys of Melbury Primary School are plunged into turmoil when the new French Master turns out to be a Mistress! Madelin Leforge's (the French Mistress) effect on the boys is swift and amazing. Suddenly everyone wants extra French Lessons just to glimpse the teacher in revealing shorts and bikinis. As discipline crumbles, a scandal explodes when the Head discovers the mademoiselle's mother was an old flame. Madeline must be dismissed to save further embarrassments.

When Professor Willingdon becomes wary of the nuclear weapons he is helping build, he steals a warhead and threatens to detonate it in London in seven days unless the government begins nuclear disarmament. As Willingdon goes into hiding, Detective Folland of Scotland Yard sets out to find him. Willingdon's daughter Ann also joins the cause, hoping she can talk sense into her father before he causes a catastrophe.