Jamie Oliver heads to the island of Sicily. In the foothills of Mount Etna, he gets a masterclass in Sicilian sweets, inspiring Jamie's outrageous chocolaty cannoli. In the heart of Catania's fish market, Nonna Rosanna teaches Jamie her sublime sweet and sour tuna. Jamie also cooks up an epic tuna, prawn and pistachio spaghetti right next to the glistening Mediterranean Sea.