Greg and Jon review the world of turnovers, including Chinese dumplings and jiaozi (pot stickers), Russian piroschki, Welsh pasties, Italian calzone, and American moonpies. Whether it's savory or sweet, made with yeast dough or pastry dough, baked or fried, Greg considers it a turnover. "Think anything good. Put it inside a dough, wrap it up, seal it, and either bake it or fry it. That's a turnover."