In the spring and summer of 1967 the Beatles were top of the charts, students occupied the LSE and the bottom dropped out of the pound. Five young women from a central heating factory in south London then decided to work an extra half-hour a day for free. Their move to 'Back
Britain' electrified the country. In the last programme in the series, Polly Toynbee and guests recall the campaign and look at its consequences. Producer Sue Davies