Roloff Farms is about to change forever. Amy prepares to move off the farm, but Matt worries it will be a slow departure. Zach & Tori are pregnant with a baby girl! As Amy searches for a new house Chris reveals he has a big surprise in store for her.

Zach and Tori are rocked by news about their unborn daughter. Jackson tries to sleep in his own bed for the first time. Amy is frustrated by house shopping while Chris takes another step toward popping the question to Amy.

Amy has big news on her house search but grapples with the reality of finally moving off the farm; it's the end of an era as the treehouse has to come down; Matt and Amy disagree on whether good fences make good neighbors.

Matt holds an auction to help clean up the farm. Amy's offer on a house is accepted and she is a step closer to becoming a homeowner. Chris plans to surprise Amy at their anniversary dinner with a shocking question!

Amy and Chris are officially engaged and are over the moon! The nerves set in when it comes time for Amy to tell Matt that she's engaged. Zach is shocked about the news of his Mom's engagement and can't believe that she forgot one single request.

It's another pumpkin season at Roloff Farms, but when Amy decides to take a step back, the Roloffs realize it may never be the same again. Amy and Chris host a 1980s throwback prom, but Amy struggles when sad news upends her life.

Zach & Tori make final preparations for baby Lilah's arrival, Matt & Caryn prepare to babysit Jackson, and Amy is in a cooking frenzy preparing meals for Tori's post-C-section recovery. Then, everyone scrambles when Tori goes into labor unexpectedly.

Jackson meets baby Lilah, and everyone is surprised by his reaction. Tori struggles with her recovery from her C-section, while Matt and Caryn find new ways to entertain little Jackson. Then, Amy and Chris move one step closer to moving in together.