Plot: From the 19th century’s legendary cattle drives to the million-acre ranch kingdoms that sprang to life with the end of the Open Range to 21st-century techniques that include artificial insemination, embryo transplants, and genetic engineering, we review the history of cattle ranching. We’ll ride herd with modern cowboys as they twirl ropes and brand calves, and look to the cattle ranch of the future, where cloning will produce the ideal meat-producing steer with a consistently juicy, low-fat carcass