On the night of 7 September 1936 three men - a university lecturer, a Baptist minister, and a schoolmaster-set fire to a training school for bomber crews being built by the Government on the Lleyn Peninsula, North Wales.
The schoolmaster was D. J. Williams who died early this year. In this film, made last summer, he retells the story of their action, now a part of Welsh history. 'It was not an act of vandalism but a direct protest in the name of the whole Welsh Nation.'
Also appearing: J. E. Jones, Catkin Daniel, Berta Ruck