Charles Lebanon Fairfax Junior was born in June 1950 in the small town of Lebanon, Kansas, in the dead centre of the 20th century and - as his family were to discover a few years later - in the dead centre of the US. The trouble is that the centre is always moving. One minute you are right in the middle of things, and the next, Alaska has been added to the union and the centre of the US is now in North Dakota. Fortunately for the family, Fairfax senior is tuned to the airwaves, and when the centre moves, he moves the family with it. As the 1950s turn to the 60s this farmer-turned-flag-maker has become a speculator in patriotism - and a highly successful one at that, while his son dreams of leaving the planet and launching into space.
As much a history of 20th-century America as of a single man, Radio roams from the end of the second world war to Vietnam, taking in the cold war and the space race along the way, offering up a world where it is not only the maps that are changing.
Al Smith's monologue is a compelling story of reaching for the stars and the moon, and the ever-crackling airwaves. Tom Ferguson - tentative in just the right way - is very effective as the young Fairfax junior, a 20th-century everyman who is talking directly at us from a place very cold and far away. Smith was responsible for the enormously promising Enola in last year's festival; his play Astronaut Wives Club is currently playing in the NYT season at London's Soho Theatre. Radio is the final part of the trilogy, and although it is limited by the monologue form, the writing haunts you long after you have left the theatre.
· Until August 27. Box office: 0870 745 3083.
