This Ministry of Information film is a straightforward, no-frills demonstration of how to store roots vegetables outside by a traditional method known as 'clamping', which had been used for centuries. Horticultural journalist and broadcaster Roy Hay narrates, as a gardener demonstrates how to construct a clamp, a cheap and efficient way of storing vegetables such as potatoes and carrots by insulating them with soil and straw in a pyramid structure. The benefits are emphasised at the film's conclusion - the clamp will protect the vegetables against all types of weather and keep them fresh until they are needed.