If the UK crashes out of the EU on 29 March with no agreement on continuing trade relations, how will it affect Britain's supplies of fresh food? Could the country's supermarket shelves be left empty?

Dan Saladino speaks to farmers, traders and officials fretting at the unknown but potentially serious consequences of a "no deal" Brexit for food security in the UK, as well as one middle class family who are already stockpiling their own food supplies.

Interviewees include Guy Singh-Watson of Riverford Farm, Professor Tim Lang of City University London, Ian Wright of the Food & Drink Federation, Andrew Opie of the British Retail Consortium, Emily Norton of Nuffield College Oxford, Tim Worstall of the Adam Smith Institute, and New Covent Garden mushroom trader Michael Hyams.

(Picture: A mother and her son look at the empty bakery shelves in a supermarket in Tewkesbury, England following flooding in 2007; Credit: Matt Cardy/Getty Images)