Matt and Amy Roloff, both 4 feet tall, face a variety of challenges in raising their four children: twins Jeremy and Zach, who is 2-feet shorter than his brother, and younger siblings Molly and Jacob, who like Jeremy are average height. The family's 34-acre Oregon farm serves as part playground and part moneymaker. As the series ages, Matt and Amy deal with personal strife, embrace their kids getting older and leading lives of their own, become grandparents, and attempt to keep Roloff Farms operational.