On 15 January 1968, thousands of homes were damaged when 100-miles-an-hour winds tore through the central belt. Twenty people lost their lives amid devastating scenes. But the storm shook up Scotland's biggest city in another way, too. It inspired a rethink about Glasgow's tenements. For 100 years, the city had been destroying unfit houses for new ones - but it wasn't solving the problem. It took the storm, a group of young architects and some strong-willed residents to save their city from the bulldozer. And it brought forward the transformation of Glasgow - from Britain's biggest slum to the cultural capital of Europe.