After traveling the world, Dave and Si are back in the UK to discover the best of British, taking a tour through different counties to meet the local people to find out the area's signature dish. They jump on their bikes to visit local food producers to hunt for their ingredients before cooking to an audience of locals in their Mobile Kitchen, with the crowd invited to sample the results and pass their verdict. Dave and Si are pushed outside of their comfort zone as they face a cook-off against one of the countys very best chefs to create a second unique dish using local produce that typifies the county. Not used to cooking in the kitchens of fine-dining restaurants, some with Michelin stars, the Bikers need all the help they can get and visit more producers to find inspiration and source their ingredients.