Food Unwrapped: Jimmy Doherty visits Spain to meet an entrepreneur who is investing a large amount of money in an attempt to farm the critically endangered Atlantic bluefin tuna. With just one of these fish selling for a record £1million at auction in Tokyo, the rewards could be huge. Kate Quilton investigates why ice cream in freezers can sometimes get gritty ahead of the best before date, while Matt Tebbutt tries to find out what the difference is between the supermarkets' premium and budget range of frozen peas.

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Documentary