This two-part explanation of the widely misunderstand border region between the United States and Mexico concludes with "From Dos Laredos to Mars," which takes host Pati Jinich from Laredo and Nuevo Laredo to Brownsville, Texas, where she gets a close-up look at the region's major industries, which include trucking, trade and ranching. She also tastes some of the American Dream during a visit with the owners of Taco Palenque, a popular family-run eatery that has grown into a fast-casual restaurant empire across South Texas.