The final dinner is a celebration of how far they’ve all come as a group, but it’s just not one big happy family without everyone … so a secret guest surprises them all!

As Maci and Cheyenne welcome the families to San Diego, Ashley reveals her relationship status with Bar, and a life coach steps in to help the moms sort out their tensions with each other.

Maci plans a fun team-building activity to settle the feud between Ashley and Jade, and an exercise with the group's life coach leads Amber to confess her deep insecurities about motherhood.

Amber skips out on outdoor fun as her thoughts distract her, Devoin visits and works on a coparenting routine with Briana, and Leah reflects on her growth in relationships.

Briana and Devoin have a breakthrough about their coparenting relationship, an obstacle course challenge ends with Briana in the hospital, and Maci, Cheyenne and Amber confront their childhood issues.

After Farrah crashes the cookout and bad-mouths Cheyenne and Cory, Coach Bryant leads an OGs-only emergency session, and the Teen Mom 2 family blows off steam on a girls' boating trip.

Maci and Farrah have a tense sit down. The group does a team building ropes course and Ashley freezes. The group gets disco fever when Briana throws a party. Chey opens up about feeling like an outsider when she first joined the franchise.

The moms & dads split up for an afternoon. While discussing how to keep romance alive in their respective relationships the mom’s notice Leah shutting down and try to get her to open up. Later, Bar woos Ashley at the hot tub and a special guest arrives.