When a tape recording of a conversation about nuclear waste inadvertently falls into schoolteacher Trevor Chaplin's hands, he and colleague Jill Swinburne find themselves being pursued by national security agents.
Episode 1
Trevor & Jill meet John the barman who gives them a jazz tape without any jazz on it. At a meeting with Dave the wimp they find out about The Peoples Front For The Liberation of west Yorkshire. John the barman has died but is feeling much better now. The man with no name called Mr Peterson came to see them. He was followed by the six men in gray suits. Jill goes to see The Oldest Suffragette In Town. Trevor and Jill go on a trip to Amsterdam with their class from "San Quentin High" but miss the boat.
Episode 2
Trevor and Jill go on a trip to Amsterdam with their class from "San Quentin High" - but the class has decamped. Trevor and Jill meet "The Honourable Order of Elks" who are "looking for a bit of action". Jill & Trevor find their action in Edinburgh. The gray men get attacked by a bagpipe band but Jill & Trevor have to go home where they find that the jazz tape with no jazz wasn't all it seemed.