Paul attends a quinceañera in Baja California, visits one of Mexico's best restaurants on the Yucatan Peninsula, and judges a pasty baking competition in a town with a surprising Cornish heritage. Along the way, he samples some unusual Mexican staples - fresh cactus in Milpa Alta and insects in Oaxaca.

Paul Hollywood concludes his trip with a look at the origins of chocolate, and pays a visit to the most extraordinary, and dangerous, firework festival on Earth. He discovers why Mexican cola is becoming increasingly fashionable in the US while exploring the role sugary drinks can play in health, and also visits Mexico's most celebrated mezcal distillery and enjoys a night in a traditional cantina.