Amy, the producer of a documentary health series, follows Ken around to record a typical day at an HMO, giving Ken his big moment in the limelight. But much to Ken’s chagrin, a series of the less than thrilling day-to-day parts of the job at Welltopia leads Ken to doubt his own career choice.

Dave's date to the Valentine's Day dance ends up being the daughter of a well-known, successful malpractice lawyer who does not like Ken. Julie feels rejected by Topher.

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 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.

A visit from Ken’s college friend, a touring stand-up comedian, ultimately spurs Ken to pursue his own lifelong dream of stand-up comedy. But when he does it, suddenly it’s not as easy as he thought, nor does it go as he planned.

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.

On Halloween, Allison is disappointed the holiday doesn’t seem to scare Dave anymore, meaning her little boy is growing up, perhaps too fast. But that might change after D.K. tells a scary Korean gwishin (ghost) story. The Park family, as well as the gang at Welltopia, bring the story to life playing the various gwishins.

When D.K. overhears Allison complain about him overstaying his welcome, he decides to move in with his girlfriend of three weeks. Meanwhile, Pat wants Dave to pretend he's his adopted son; and Allison is convinced Molly wants to talk about something when she suggests they do a spa day, but the tables turn when Molly is the one doling out the advice.

When Ken's attractive new intern, Erin, shows up at Welltopia, Allison starts to feel a bit insecure when Erin's admiration for Ken veers into flirtatious territory. Meanwhile, Damona's boyfriend, Eric, wants her to confront her musical past when he learns she was the lead singer on the C & C Music Factory's 1990 dance jam, "Gonna Make You Sweat." Molly's first date with Jae leaves her wondering if he really likes her, so matchmaker D.K. goes on a secret mission to see what he can find out.

Ken spirals a bit out of control when he finds out Molly's new boyfriend, Jae, is leaving behind his pre-med studies to be an artist. At Welltopia, Pat asks Clark to monitor his weight loss program; and when Damona learns she isn't required to wear scrubs, her new look results in several awkward moments.

Pat refuses to accept Ken's diagnosis that his stressful relationship with girlfriend Megan is causing his mysterious rash. Meanwhile, Dave wonders how he can break up with Emily without hurting her feelings, and Clark invites Allison to a new meditation studio.

Molly admits to taking a sip of beer at a party, but insists she hated it and didn't drink the rest. While Allison is happy Molly is being honest with them, Ken is afraid of losing his little girl and uses the opportunity to explain to her what alcohol does to the body... in medical terms. His experiment goes awry when he accidentally gets blitzed and makes a fool of himself in front of her friends.

Ken's sister Wendi, a successful doctor/TV host on a medical talk show, comes to visit the family and tension ensues. Ken can't admit that he's jealous of his sister's newfound success. So when Wendi invites Ken to be a guest on her show, he makes a mockery of it.

Ken continues to push basketball (his passion sport) on Dave, but his son is more interested in going to a city council meeting about the extreme drought in California rather than playing in a game. Meanwhile, Damona tries to work the system at the office to get more vacation days and Molly tries to convince her mom to let her wear a skimpy outfit.

After Ken's father shows up unexpectedly, he takes care of chores around the house that Ken has not been doing.

Ken is urged to learn Korean when his father's friends poke fun at his inability to speak the language. Meanwhile, Allison helps Molly with her SAT vocabulary prep and Clark is proud to lead the nurses' contract talks, but isn't looking forward to negotiating with Pat.

Ken's dream comes true when he's cast in a comedy series that takes place at a community college.

On Allison’s first work day at Welltopia, she and Ken try to prove the other wrong when it comes to a patient’s diagnosis. After Damona introduces her new boyfriend, Eric, to co-workers, Pat surprises everyone and announces he’s also dating someone. Meanwhile, it’s Dave’s first day of middle school, and he’s nervous he won’t be able to make friends, so he turns to D.K. to help reinvent his image.

When Ken wants to apologize to a patient for missing an important medical detail, Pat advises against it, and the situation gets out of hand. Meanwhile, D.K. shakes things up at Dave's parent/teacher conference.

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's old professor makes an appointment and torments Ken during his visit.

Pat eyes a promotion and asks Ken to put a good word in for him with the CEO of Welltopia.

When Molly brings home her boyfriend, Allison has a conflict of interest when she realizes that he’s the son of one of her patients. Through a therapy session, Allison concludes that Molly’s boyfriend is cheating on her, but when Ken and Allison try to pry it out of him, it’s actually Molly who admits to cheating. This leads Allison to reveal her own overlapping romance when she first started dating Ken. Meanwhile, Pat begins kissing up to the staff, knowing that his evaluation is coming up.

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.