The Roloff kids are grown and Jacob, the youngest and last child at home, is about to move out. In the midst of Matt and Amy’s evolving relationship and empty nests, there is also celebration and joy blossoming on the farm. Another Roloff family wedding is right around the corner. Almost a year after Jeremy’s storybook wedding, his twin Zach is now preparing to get married. He has a distinct vision for his wedding day which sends Matt into a tailspin of activity to get the farm ready yet again. Throughout the flurry of activity in their lives the Roloffs always manage to tackle any obstacles that they encounter head on as a family.
Jeremy Roloff married Audrey Botti on his family Farm at the first Roloff wedding. The family reflect on the big day and their love story.
Zach and Tori's wedding is a few months away, and the whole family pitches in to prepare the farm for their nuptials. Meanwhile, Matt and Amy wonder what the future holds for their relationship; and Jacob makes a big announcement.
Zach visits Jeremy and Audrey in Los Angeles to learn about married life, while Matt makes a surprising purchase that could improve his health. Later, Zach and Tori ask Matt to help set the scene for their dream wedding ceremony.
Amy tackles a do-it-yourself project with a friend as a way to deal with her empty-nest syndrome. Meanwhile, Zach asks Jeremy to play an important role at his wedding; and Matt and Amy finally discuss the future of their marriage.
Tori goes dress shopping while Zach gets fitted for his suit. Elsewhere, Matt and Amy launch the family's new salsa business; and Jeremy ponders his future in Los Angeles.
Amy hosts a charity mud run on the farm as a way to give back to the community. Meanwhile, Zach and Tori feel the pressure of planning their wedding.
A windmill cocktail bar for Zach and Tori's wedding proves to be a challenging construction job for Matt and Jeremy. Meanwhile, Amy and Matt visit a local grocery store to see if it will sell their salsa.
Zach and Tori's wedding is just days away, and Jeremy is nervous about his best man speech, while Amy and Molly concentrate on the rehearsal dinner, but everyone is worried about a dreary weather forecast that could ruin the couple's dream ceremony.
Highlights of the series are recalled when the Roloffs are interviewed by Andrea Canning of NBC News.
The Roloffs meet the Hamills ("Our Little Family") when the Maryland clan visits the farm in Oregon, where they're introduced to the animals and go on a treasure hunt.