When Matt Roloff learns of dwarf children in Iraq who need medical intervention, he makes the difficult, dangerous journey into Baghdad to find the family, befriend them, and get photos and x-rays to bring back to America for evaluation.

After months of renovation, the Roloffs are remodel-weary - especially now that it's winter. But when Matt decides to "go green" and install a gigantic geothermal heat pump system, the whole family chips in to warm up their house again.

Molly puts her brothers to shame when she and her girlfriends are the first to spend the night out in the Native American plank house. Zach & Jeremy organize a campout with their buddies - but wind up worrying Amy when they don't return home on time.

Matt and Amy are invited to speak together at a conference. When Matt falls ill, Amy wonders if she'll be able to handle more than her share of the speech. Back on the farm the kids begin to learn what it takes to manage daily life on their own.

Thanks to his work at Sylvan Learning Center, Zach's grades are really improving. For extra credit in history class, Zach makes a Civil War movie with his friends, but he has to scramble when he realizes he hasn't written a part for his girlfriend.

Matt ups the ante for his accessibility kit business DAS by taking Amy and a group of their little people friends to a Las Vegas hotel convention. Back at the farm, an overflowing toilet means chaos for the kids.

While Matt and Amy are in Vegas having a blast with their little people friends, the Roloff kids are on their own. Although Jacob is being a pesky little brother, his twin brothers encourage him to grow up by taking him along for an adventurous hike.

Matt takes the Roloff remodel outside and hires his old buddy Romi to build a new deck. Arguments with Amy flare up when Matt continues to make last-minute changes. Amid the construction chaos, Amy tries to focus on her preschool class graduation.

With money he's saved, Jeremy buys an old, car to fix up. But after he and Zach are busted for off-road mudding with their cars and breaking state law by driving with an underage passenger, Matt & Amy suspend the twins' driving privileges.

When Zach and Jeremy's school soccer team goes on a losing streak, Matt and Amy struggle to teach the twins life lessons in responsibility and perseverance. But on the sidelines, Amy's competitive nature erupts.

The upheaval of the Roloff remodel is at an all-time high. As stress takes its toll on the family, Matt announces his plan to move his business office into the house - adding to the chaos - and Amy worries that she's lost control of her household.

After over 6 months of work, the latest Roloff remodel is in the final stages. Tired of the family living on top of one another in 2 rooms, Amy has run out of patience with Matt's constant additions & changes. Jeremy crashes into the new garage door.

With the remodel finally behind them, the Roloffs go to Orlando for a much-needed escape. Amy leads the charge to get the family into vacation mode, but it takes more than belly-dancing, alligator catching and grub-worm eating to loosen Zach up.

Now that their old, yellow Volkswagen Beetle has been overhauled at a body shop. Matt takes Zach and Jeremy on a road trip to trailer it home. For Matt and his oldest sons, it's a journey of male bonding, discovery and discomfort.

Amy visits an little people friend in Napa, California, where she speaks at a local church group for Mother's Day. Back home, Matt tries to organize a big surprise for her: a gazebo built on her favorite spot on the farm

Zach and Jeremy have reached adulthood-sort of. They're 18, but they don't seem ready to leave the nest. Amy prepares a pool party for the twins, but when Matt drags his feet on getting the pool in working order, the whole party is put in jeopardy.

Amy joins her siblings in Taos, New Mexico to celebrate her sister's birthday. They ride horses, raft whitewater rapids and experience a Native American sweat lodge, but the fun grinds to a halt when the chaos at the farm finds its way back to Amy.

It's been over 2 years since both Matt and Amy's families got together, so they invite the Knights and the Roloffs to the farm for an early holiday celebration. Amy attempts to deck the halls and transform their home into a "Roloff Winterland".

Matt and Amy's families gather for their holiday celebration. Coordinating a meal for 25 guests is a lot to manage. The family get-together includes Matt's brother Sam (a little person), Amy's parents Gordon and Pat, and a guest appearance by Santa.

Family friend Mike Detjen is as involved with the Roloff family as ever: building a new trebuchet, coaching the twins' soccer team. When a heart condition suddenly takes Mike's life, the family must face coping with the loss of their friend.

In the aftermath of losing their dear friend Mike Detjen, the Roloff family recalls his special place in their lives. They prepare for his funeral and turn an already planned housewarming party into an emotional get-together to honor his memory.

Matt and an orthopedic surgeon return to the Middle East to perform leg straightening operations on Ali and Bara'a, two of the dwarf children Matt met on his first trip to Iraq.

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Matt and Amy's great expectations are realized when Molly is named valedictorian of her 8th grade class. But Amy has her hands full when Molly refuses to give a speech and picks a graduation dress that violates the school dress code.

Amy takes the kids to visit her family, the Knights, in Michigan. Amy's father, Gordon, takes his grandkids hiking in the woods but the idyllic scene turns to chaos when Jacob gets a tick, and no one seems to know how to get rid of it.