Gregg and Chris have their work cut out for them with the Booth family in Lancashire. Mum Jenny claims to always shop with a list and tries to be cautious, stocking up on buy-one-get-one-free deals. Dad Howerd's impulsive purchases mean that the food bill mounts up. They want to save £40 a week on food to afford a much-needed home extension.

Gregg and Chris are with a family whose weekly food shopping spend is out of control. The brand-loving Warners from Stratford-upon-Avon have a large family and an enormous food bill, but with a home renovation underway, every penny counts.

MasterChef judge Gregg Wallace and greengrocer Chris Bavin spy on Maidenhead couple the Stantons, who turn out to be spontaneous shoppers - not only do they have no list and buy a lot of pre-chopped fruit and vegetables, they also don't purchase frozen food - and it seems that everything three-year-old daughter Sophia points to goes in the trolley. Gregg and Chris set to work swapping some of their favorite brands and showing them the benefits of using their freezer. Will they save enough money to get the dream holiday they deserve?