Things end up not running smoothly after Ken and the office staff attend a colleague's wedding. Molly hires a baby sitter for Dave. Dave attempts to sneak out and he hires a friend to impersonate him.

Dave gets an impromptu birds-and-the-bees talk from Julie after Ken has been avoiding it, but he's not off the hook with Allison when she learns he took full credit. Meanwhile, Clark gets dubious advice from Pat.

When a job opportunity opens up at Welltopia, Pat thinks Allison would be perfect for it, but Ken isn’t so sure he wants to work so closely with his wife. Molly is stunned with her low SAT scores, and Dave has some ideas as to how to hide the results from their parents. Clark asks Damona’s help in trying to find out what Clark’s boyfriend, Connor, does for a living. Meanwhile, Ken’s father, D.K., makes a surprise announcement.

When a neighbor girl stands outside the kitchen window staring at Albert, Molly and D.K. try to scare her off. Meanwhile, Ken is surprised when he learns that Pat, instead of him, is asked to emcee this year's annual Welltopia banquet; and Clark and Damona debate relationship styles as it relates to their individual partners.

Allison convinces a reluctant Ken that it would be a fun family adventure to drive to her parents for Thanksgiving dinner. But along the way, a traffic jam combined with her husband and kids’ antics causes her to lose her usual cool. Meanwhile, Clark takes charge to serve Thanksgiving dinner at a shelter for the homeless, but his bossiness and unnecessary attention to details drives everyone a little crazy.

Allison wants to show her fun side to her Welltopia coworkers and offers the Park home for the office holiday party, but Ken isn't onboard with the idea. Meanwhile, Clark truly wants to give his boyfriend, Connor, the perfect present, but Connor upstages him with the ultimate gift; for the library's Christmas party, D.K. dresses up as an unlikely Santa and Dave dons elf garb; and Molly tries to impress a Stanford University official.

When the star of Molly’s high school basketball team injures his ankle, Ken’s routine exam and unexpected diagnosis shocks everyone since it might keep the young man from playing in the big game. Meanwhile, Clark and Connor take another major step in their relationship before getting married, and Pat lets Allison in on the secret espresso coffeemaker he keeps in his office.

Ken lets Allison, who is second-guessing her decision to have a low-key Valentine’s Day, think that a love poem Dave wrote for his sweetheart, Emily, is meant for her. Meanwhile, Molly and Jae consider Valentine’s Day a corporate concoction; Clark plans a romantic scavenger hunt to lead Connor to his present; and complications arise when Damona and Eric have dinner at a restaurant that she and Pat once frequented when they were dating.

Ken finds out about Clark and Connor's surprise wedding and is tasked with getting the guests there.