Greg joins Colleen's gym and goes overboard gearing up to work out. Also, Heather and Jen host a secret garage sale that directly competes with one Joan is having, Tyler and Samantha throw a party while Heather and Tim are away for the weekend, and the family has second thoughts about eating lobster for dinner.

When John starts feeling old, he attempts to make himself look younger, much to the dismay of his family. Also, Heather worries that Sophia’s piano recital will be a disaster; Jen, Greg and Lark go to an over-the-top birthday party full of overachieving parents who make them panic about getting Lark into a good preschool; and Matt meets Colleen’s mother, Mia, for the first time.

Matt and Colleen experience crazy sleepwalking adventures after taking a sleep aid; Jen tells Greg she had a sex dream about a family member; Tim wants to help Sophia get through a slumber party; John installs a motion-sensor light in the yard.

When Jen sings in Tyler's band, she gets caught up in the excitement and creates an awkward situation for him. Also, John and Greg decide to brew beer together, Matt donates one of his paintings to a silent auction for Tim's medical charity, and Heather becomes jealous of Joan's friendship with a classmate.