The Texas Adventures of Arnie Armadillo is about a lonely armadillo from Missouri who longs to meet other armadillos. After he hears so much about the state of Texas and how there are a lot of armadillos living there, Arnie decides to leave the only home he has ever known and travel alone to Texas. Soon after arriving there, he makes a new and dear friend, Albert Armadillo, and becomes an adopted member of Albert's family. Arnie and Albert decide to go on a road trip of Texas and explore the seven different regions. The South Texas Plains is about Arnie and Albert discovering the Texas history and culture of well-known cities such as San Antonio, Laredo, Eagle Pass, Goliad, and Gonzales. They also meet some of the wildlife native to this region.