The Hairy Bikers are on another cooking road trip, this time across India. As they travel through the Cardamom Hills high up into tea country, Si finds an astonishing piece of his family history. They're heading across the beautiful mountains towards Kerala and its cultural capital of Cochin. In the paradise-like backwaters of Allepey, they commandeer a traditional wicker houseboat and cook up a local delicacy of fish and coconuts.