George's friend Marco wants to make his famous tortillas for his abuela's birthday, and George is happy to help But when George knocks over the bag of masa and the grocery store is all out, George and Marco are worried the birthday surprise will be ruined. Luckily, Uncle Enrique is there to take them on a new adventure to find out where masa comes from, how it's made, and how it gets from the farm to Marco's table. This story, based on the Emmy Award-winning PBS TV show, also includes two activities to help reinforce the concept of where food comes from and how it gets into our stores and onto our plates.