James Martin begins the Texan leg of his American Adventure by visiting a place with more than a hint of Mexican spice. San Antonio was once a part of Mexico, and its influence is all around this great city. After learning how prohibition helped shape San Antonio, James uses traditional flavours and ingredients to cook his take on Mexican food in the historic market square before sampling traditional tamales and barbecoa at the hands of Johnny Hernandez, perhaps San Antonio's most famous chef.