When Colleen and Matt try to impress a potential birth mother, they have a hard time competing against another rich, swanky couple. Jen’s pregnancy takes a toll on Greg; Heather lets John take credit for her housekeeping while Joan recovers from knee surgery. Tim arranges for Tyler to record a demo at a friend’s studio

After Tim has a heart attack, he becomes super clingy and annoys the entire family. Also, Greg and Jen make a pact to keep their baby's gender a secret; Sophia's new pet frog turns out to be a dangerous species; and Matt and Colleen receive news about their impending adoption.

After John befriends the janitor at Sophia’s school, Mr. Sissel, John learns that Sophia and her friends believe a childish rumor about him. Also, Heather pushes Tim and Joan to go for walks together while recovering from their health issues; Matt and Colleen try to tame Dougie’s bad habits; and Jen is desperate to not go into labor during Lark’s birthday party.

Greg scrambles to find Lark when he loses her at the hospital while visiting Jen and the new baby. Also, Heather offers to help Sophia with her math homework but can’t figure out the new teaching method; Matt enrolls his adopted son, Lucas, in a father/son art class; and Colleen organizes a family photo shoot and glams Joan up for the occasion.

Heather and Tim try not to freak out when they get an emergency text from Samantha to pick her up in the middle of the night; Tim endures an embarrassing public situation; John accidentally walks in on Jen while she's breastfeeding the baby.

When Tim gets a toupee, the family try their best to hide their horrified reactions; Jen fights for face time with her boss; Joan decides to retire; Greg and Matt build a playhouse for the kids.

Jen and Greg hire Edna—the cleaning lady who has worked for John and Joan for years—but Jen is horrified at her strange habits. Matt, Heather and Greg race to find the valuable souvenir pens John brought them when they were kids. Lucas is terrified of Joan. When Tim invites Matt over to watch a sporting event on television, it takes a weird turn.

When Tim and Heather realize that being grandparents is very far off in the future, they decide to have another baby. Joan gets frustrated when she keeps getting tasked with watching the grandkids. Jen and Greg decide to look for a new house. Matt gets a job offer in Germany, which is problematic for Colleen and Lucas.