Chef Edgar Nunez wants to change the world. Like Rick, Edgar believes everyone should have access to fresh, local food; he believes Mexican chefs should embrace their own cuisine; and he believes in mentoring the younger generation. Rick and Edgar strategize over a meal of duck carnitas with mole negro at Sud 777, Edgar's strikingly beautiful fine dining Mexico City restaurant. Then they take it to the streets where Edgar's mission continues via food trucks that serve fresh, affordable tacos, tostadas and caldos to all manner of customers. At home, Rick shares his tips and recipes for a stress-free tostada party - including great guacamole - sure to change your world.