With Americans eating more than 85 billion tortillas a year, Mexican Food is very popular. But did you know that a donkey is a key to great tequila? Ever wondered how many times they refry refried beans? And what do sound waves have to do with guacamole? Watch host Bobby Bognar as he travels south of the border to help an old artist make a classic Mexican cooking dish from volcanic rock. On the high seas, he'll try to keep his cookies in a rough and tumble hunt for mahi mahi. And he'll show us how a fruit that resembles a human brain becomes a classic Mexican after-dinner drink.