Trent starts his new career, and Alex, Emma and Amber are back in school. Things may be busy, but Trent and Amber still consider a new addition to the household. They aren't sure of how the kids will react, though.
The Johnstons prepare for the arrival of Joose, a Finnish exchange student. While Liz, Anna and Jonah enjoy living on their own, the younger kids help Trent up his social media game for his new job.
The Johnstons introduce Joose to American traditions, including pumpkin carving at Halloween and a Friday night at the high school football game. Meanwhile, Alex is struggling in school.
The Johnstons introduce their Finnish foreign exchange student, Joose, to their competitive side with the first ever Johnston Backyard Games. Then, Trent and Amber celebrate their 23rd wedding anniversary with plumbing, pajamas and plaster.
The Johnstons introduce their foreign exchange student, Joose, to some common Thanksgiving traditions--as well as a few traditions of their own. Liz and Anna look into becoming homeowners, and Liz thinks she and Brice are ready for the next step.
After celebrating Finnish Independence Day, the Johnstons head to Washington, D.C. to show Joose America's capital. Back in Georgia, Anna and Liz give Jonah's bachelor pad a makeover.
It's Christmas in Georgia, and the Johnstons and Joose share traditions. Anna is seeing a new guy, but she's reluctant to have him meet the family. Meanwhile, Liz decorates her own place and talks about a future home with Brice.
After the family celebrates Amber's birthday, she and Anna decide to upgrade their looks. Brice and Liz are ready to take the next step in their relationship, and Trent and Amber have a heart-to-heart with Jonah about his recent behavioral issues.
Jonah moves back home and starts a new routine. Alex and Emma join forces to help Amber at home. Anna, Liz and Emma make vision boards and discuss their goals in love and life. Then, the family video chats with a familiar face.
Trent's snoring keeps Amber up at night and puts his health in danger. Liz heads to Nashville for a girls' weekend, but three little women out on the town draws unwanted attention. Alex gets an exciting opportunity.
After the family enjoys a local strawberry festival, Elizabeth and Brice begin to move his things into her home. Emma starts an internship, and Jonah's girlfriend, Ashley, visits, but Trent and Amber have questions for the couple.
Anna and Emma look for love at a singles event. Meanwhile, Elizabeth meets with Brice's parents to talk to them about the couple moving in together. And when Jonah's girlfriend, Ashley, visits for the weekend, Trent and Amber voice their opinions.
Emma discovers the wild side of animal care during a new internship, and Jonah gets serious about his mental health. Anna and Amber make strides in their relationship while pursuing changes in their professional lives.
Alex and Emma look at potential cars, but some driving lesson mishaps may set them back. Meanwhile, Liz and Brice's plans to move in together hit another obstacle. Then, Trent and Amber have ideas for a sleek and sexy bathroom renovation.
Brice prepares a special date for Liz to forget the issues of moving in for a while; The Johnston girls meet up for lunch over sushi; Alex offers to shoot a commercial to help Trent with his business.
Jonah prepares for the family's upcoming trip to the annual little people's conference with a bold new look. Meanwhile, Emma and Anna speculate on why Brice can't move in with Elizabeth yet.
The Johnstons head to Spokane for the annual Little People of America convention to meet up with friends, including Joose. Then while Anna, Alex, and Emma give updates on their dating lives, Jonah and Ashley reunite to discuss rekindling.