Matt Roloff hopes to inspire his son Zach to live without limits; introduces him to role models in the dwarf community, including a law professor who served in the Clinton administration and a welder who works on a top-secret naval submarine.

After failing twice, 15-year-old Little Person Zach Roloff prepares to take another shot at his driving permit exam. But complications arise when Zach crashes the family van during a joy ride on the farm.

Dwarf Matt Roloff is frustrated when his son Zach (a dwarf) blows off a rare chance to socialize with dwarf girls to play football. Meanwhile, mom Amy (also a dwarf) has a hard time motivating Zach's average height twin brother before a soccer game.

Dwarf couple Matt and Amy Roloff, take a break from their hectic lifestyle with a week-long tropical cruise. But as soon they return, Matt and Amy butt heads over one of Matt's new schemes: build a chicken coop and bring home a rooster.

When a mysterious illness strikes 15 year-old dwarf Zach Roloff, his parents Matt and Amy (also dwarfs) rush him to the emergency room. Soon after, doctors take Zach into emergency surgery, and the Roloffs anxiously awaits the results.

To calm his dwarf wife Amy's fears about the future, Matt Roloff (also a dwarf) agrees to take a corporate job in the computer software industry. But after years of being his own boss, Matt's transition back into the corporate world is a challenge.

As he recovers from emergency surgery, 15-year-old Little Person Zach prepares for his first date, inviting a dwarf girl to his winter formal banquet. Average-height brother Jeremy seems at ease at the banquet, Zach's first date is nerve-wracking.

With a business trip to South America looming, Little Person Matt Roloff races against the clock to finish remodeling the family kitchen, redesigned to "fit" his dwarf wife Amy.

Meet the Browns, a seemingly regular family on the outside, but with a twist once you step inside their home. We also learn this extraordinary family is on the verge of another huge change that could transform the family’s dynamic forever.

Kody heads south to court his potential fourth wife, Robyn. Meanwhile back home, the wives express their true feelings about their new possible sister wife as they make preparations for Christine's new baby.

Kody and his teenage daughters throw a birthday party for his new fiancée, Robyn. Meanwhile, 1st wife Meri struggles with feelings of jealousy as the whole Brown clan moves Robyn and her anxious kids closer to the family home.

Kody's fiancée Robyn helps out with the kids while Kody and his pregnant third wife Christine go to the hospital. A week overdue, they must make an important decision on whether or not to induce labor.

While the three wives buy a friendship ring for Kody's fiancée Robyn, Kody prepares to celebrate his 20th Anniversary with his first wife, Meri. But when nothing goes as planned, will Kody end up in the dog house?

As the wedding day nears, the three wives help fiancée Robyn pick a wedding dress, a cake, and a venue for their unique polygamist wedding reception. Meanwhile, it’s Janelle’s birthday and Kody has a special trip planned just for the two of them.

The big day is finally here! Follow Kody and his wives as they make Robyn officially wife number four. See this extraordinary family as they celebrate the newest additions to their family and prepare to embark on a new chapter in their lives.