Reagan and Chris go through a scrapbook they are making for Amy's upcoming first birthday. Reagan notices that Chris wrote in the book that Amy's first word was "dada." Reagan fights back that Amy's first word was "mama," then gives a detailed description to prove her point. Chris rebuts Reagan by showing videotape evidence of Amy saying "dada." "Notice the time stamp on the video," Chris points out. They suddenly jump on the ground next to Amy and attempt to coerce her into saying their name. "She just said Kia," Chris excitedly points out as Amy speaks gibberish. "She knows about cars... she's a genius!"
Chris is placing Amy in the car for a play date when Gene and Terry walk up. He tries to act busy since he doesn't like Gene and Terry, but they awkwardly don't get the hint. Terry asks if Chris would be interested in co-hosting a 1st birthday party since their children are the same age. Chris hates the idea and tries to wiggle out of it; but he's not good at disappointing people, so he blurts out "yes." Reagan arrives at the car and is shocked to learn what just happened. "I'm just a get-along guy," Chris says in a feeble attempt to defend himself. Later, Chris is at the playground with Nancy discussing Amy's birthday. Nancy asks Chris if he could introduce her to Ned, a playground hunk she has her eye on. "I haven't been on a date in a looong time - 22 months," she blurts out to Chris.
It's the day of the joint birthday party as kids play happily on a bouncy castle. As Reagan and Chris walk through their house, they are mortified to find that 90 percent of the attendees are Gene and Terry's friends. They look around and see random people misusing their house: feet on a table, double dipping, doing laundry, etc. Ava soon arrives dressed fancy for the occasion; she is putting together a special VIP room just for Amy's guests. Since she's Amy's godmother, Ava is pulling out all the stops to make the birthday truly special. After Ava walks away, Reagan quickly asks Chris why Ava thinks she's the godmother? Chris sheepishly admits that he might have given her that impression on accident.
Reagan is livid. "You need to learn how to say no, Chris." "I'm a people pleaser. It's what I bring to our relationship, the chill factor," Chris replies. Reagan hates how she always has to be the bad cop while Chris can be Mr. Cool; he needs to play the bad cop once in awhile. "And you can start by telling Ava that she's not the godmother!" "Why tell her?" Chris asks. "The issue only comes up if we both die at the same time!" Reagan is steadfast; until Chris tells Ava the truth, she will only be the good cop. Later, Chris talks to Ned about how his date with Nancy went. Ned is ecstatic; it went great. As he walks away, Nancy sneaks up behind Chris and pleads for his help. The date went great, but she got what she needed. "He got the job done, if you know what I mean." Ned is starting to be clingy, and she needs Chris to tell him it's over. Chris finds himself stuck with the possibility of being the bearer of bad news.
Ava excitedly brings Reagan, Chris and Amy her present. She dramatically reveals to them an 18th-century painting of Amy holding a dove. "Isn't she glorious," Ava squeals with delight. Reagan and Chris are flabbergasted, but Reagan says she loves it in order to make Chris be the bad cop. "We can put it above the fireplace... unless you have a problem with that, honey." Chris can't make himself be the bad guy and agrees the fireplace would be perfect. Later, Ned traps Chris to ask about Nancy. His date with Nancy was the first time since his divorce that he's felt alive, but now Nancy is giving him mixed signals. Chris finally begins to level with Ned about the truth, but Ned breaks down in tears. Chris quickly walks away before Ned tries to hug him for comfort.
It's time to sing "Happy Birthday" to the children, but Chris is upset to learn they are not doing it the way he wanted to. Instead, everyone is holding hands and only singing it once for both children. When it comes to say the child's name in the song, Chris loudly screams "Amy" so he'll be heard over everyone else. Later, Reagan and Chris are in their bedroom changing Amy when a random man walks out of their private bathroom. "Has society broken down?" Chris angrily screams out. Gene and Terry rush in with bad news; the clown has cancelled on them. Now they have nobody to entertain the children. "I got this covered," Reagan says with a wicked smile on her face as she rushes out.
Ava calls for the attention of everyone at the party; she wants to introduce them to the "Birthday Chicken"! Reagan suddenly jumps out in a full body chicken outfit and dances to the joy of the children. Later, Chris tells Reagan how awesome it was that she dressed up. "You're actually better at being a good- time-Charley then me," Chris reluctantly admits. Chris opens up Amy's birthday present from his sister and finds it's an automatic talking card. To Ava's shock, the card mentions that Chris' sister is Amy's real godmother. "Hahaha, they think they're the godparents?" Ava laughs. She is soon heartbroken to find out that the card is speaking the truth and runs away embarrassed.
Reagan and Chris find Ava mopping inside the bouncy castle. They walk inside and sit next to her. Chris apologizes and admits he's not good at disappointing people. Ava tells them she understands completely; they rightfully want someone with more responsibility, not someone that was once charged with running over Deion Sanders. Ava opens up and tells them that she'll never have a baby, and when Amy was born, she thought here was her chance to make a difference in someone's life. Reagan tells Ava that the term "godmother" is just a title. She's there every day, interacting with Amy. In the long run, that's the most important thing. Ava, Reagan and Chris awkwardly try for a group hug in the bouncy castle.
Uplifted by his talk with Ava, Chris walks in steadfast and tells everyone to leave his house. Reagan pretends to be disappointed but nonchalantly nudges him along to keep going. "Let's keep the goodbye train rolling," Chris shouts out as the guests leave. Terry and Gene walk up to thank them for a great party; maybe they should do it again for their kids' 2nd birthdays. "Nope," Chris quickly says. As the last guest leaves, Chris is delighted to finally be able to say the word "no." They walk up to Ava who holds a playful Amy in her arms. Suddenly Amy says her first word: Ava. They are all ecstatic as they gather around Amy and smile as a family.