Billy and Dom begin their food exploration adventure in London and decide the first dish they want to learn to master is the Sunday roast. They visit their friend Sir Ian McKellen in his London pub, The Grapes, and reminisce about the past.

Billy takes Dom to his northern homeland of Scotland to see a very different side of Britain.

Billy and Dom are back on their home turf, ready to see what the American West Coast has to offer. Dom reveals his favourite food spot in the city, the Endorffeine Coffee Bar.

Billy and Dom travel to Texas to experience southern hospitality at its best.

Japanese knives are the most sought-after knives in the world. In Kyushu, Japan's south-westernmost island, Billy and Dom learn the art of sushi knife making from one of Japan's leading blacksmiths.

Back in Europe, Billy and Dom make their way to the picturesque Alpine region, where their destination awaits: Verbier, a popular Swiss ski resort.

Billy and Dom brunch at popular diner Gooey, learn how to make a delicious curry at one of Manchester's famous Rice and Three cafés, explore the science of making ice cream cones, and tour the Manchester United stadium.

Billy and Dom cross Costa Rica from its Northern Pacific coast to the capital San Jose. They learn the culinary secrets of Nicoya, one of the world's five blues zones.