Jimmy Doherty, Kate Quilton and Matt Tebbutt return for another series, travelling across the globe in their quest to uncover more unusual, intriguing and surprising secrets behind the food we eat. Jimmy goes to Thailand to ask if food addictive MSG is really as bad as the scare-mongering headlines claim? He visits a colossal factory that produces a quarter of the worlds MSG, and uncovers its surprising origin. Kate is curious about Brazil nuts, and finds herself deep in the Amazon rainforest investigating rumours that Brazil nuts on the UK shelves are all radioactive. While Matt is in leafy Lincolnshire to see how a UK business manages to produce 1.5 million bottles of elderflower cordial - without employing a single flower picker.