As the school prepares for the upcoming Family Day event, Jeff is shocked when his girlfriend Professor Slater unexpectedly breaks up with him. In the study room, Shirley is looking forward to the day's festivities and is excited for the study group to meet her children. Abed mentions his father is coming along with his cousin Abra while Troy adds that his grandmother's visiting as well. Jeff arrives and announces he was just dumped by Slater. The study group comforts him, but he explains that as the dumpee, he is allowed to have many meaningless hookups. Jeff tries to prove his point by hitting on a woman outside the study room named Amber. His efforts are hindered by Pierce who turns out to be her ex-stepfather. In Spanish class, the students' family members attend the class alongside them.
Jeff discovers he has Abed's ability of precognition.
Shirley meets Abed's cousin Abra who is dressed in a burqa and his father who introduces himself as Gobi. She in turn introduces her children Elijah and Jordan. Jeff attempts to chat with Amber but Pierce won't allow it. Despite this, after class Pierce asks Jeff for help in connecting with Amber. Jeff refuses only to be stopped by Annie who overheard the conversation and convinces him to help Pierce. Elsewhere, Britta runs into Troy and his grandmother. Britta accidentally offends her when Nana Barnes misinterprets a compliment she was trying to give her. Britta asks for a way to make it up to her and Nana Barnes tells her to find her a switch. At the Family Day BBQ, Dean Pelton meets Chang's brother Rabbi Chang while Pierce is still failing to connect with Amber.
Pierce thwarts Jeff's efforts for a rebound with his stepdaughter Amber.
Jeff then shows up and starts to regale her with exploits about Pierce at Greendale. Elsewhere, Abed and his family are sitting with Shirley and her kids. Elijah and Jordan ask Abra if she wants to play, but Gubi won't allow it despite her wanting to try out the bouncy house. A heated exchange between the niece and uncle ensues. Shirley leaves to get some food just as her boys start to fight over a video game. The ruckus causes them to knock over a beverage on to Gubi. Before leaving to change his shirt, he berates Shirley for having unruly children and calls her a bad mother. Meanwhile, Jeff impresses Amber with his stories about Pierce. Amber leaves to go to the restroom and Pierce tells Jeff to take off believing he can handle it from here.
The Bennetts and the Nadirs attend the Family Day BBQ together.
Jeff goes but runs into Amber on his way out. They start to make out when an oblivious Pierce interrupts them. He invites Amber to compete with him in a Pictionary Tournament but she makes it clear she won't go unless Jeff does. Outside, Britta is searching for the perfect switch while Troy incredulously watches on. Back at the BBQ, Shirley returns to the table with food and sees Abed and Abra but not her kids. Abed refuses to say where they went as Gobi returns and criticizes Shirley's parenting. Shirley admits she needs to rein them in more but replies that Gubi is too overprotective of Abra. When she looks closer at "Abra" she sends Gubi away to get napkins and finds Elijah and Jordan underneath the burqa. Abed points toward the bouncy house where the real Abra is enjoying herself.
Jeff and Amber make out in the library with just the right amount of tongue.
In the student lounge, Pierce, Amber, and Jeff are on the same team competing against Star-Burns and his son's team in Pictionary. Jeff correctly guesses Amber's clue annoying Pierce who accidentally draws his clue in the shape of a swastika. Chang and his brother Rabbi Chang see this and are outraged. Chang and Pierce get into a fight, the aftermath of which is overseen by Officer Cackowski who takes statements from them both. Jeff and Amber excuse themselves by saying they are going out for coffee, but Pierce suggests they are leaving to have sex. In the Spanish classroom, Britta proudly presents Nana Barnes the switch she found. Nana Barnes tells Britta to drop her drawers and get across her lap for the whooping.
Abra enjoys the Bouncy house.
Troy tells Britta to walk away, but she wants to prove she's not a hypocrite. As Nana Barnes starts spanking Britta her resolve crumbles and she cries out in pain. Jeff and Amber stumble onto the scene as Troy pleads with his grandmother to stop. They go to a supply closet and Jeff notices a check fall out of her jacket when Amber undresses. Even though she admits she hustled Pierce, Jeff still has sex with her. Later, Jeff runs into Annie in the hallway and tells her how Pierce's step-daughter is a grifter. Annie then convinces Jeff to tell Pierce the truth. In the student lounge, Shirley catches up with Abed who tells her helping Abra was Elijah's and Jordan's idea and compliments her for being a good mom.
Britta proves she is not a hypocrite.
At the Family Day Dance in the school cafeteria, Troy finds Britta still sore from the whooping. Nana Barnes shows up, overhears them talking, and confronts Troy about some comments he made about her. Also at the festivities is Jeff who greets Amber. He asks her to tear up the check and instead spend time with Pierce. She opts to just take the money and leaves. Jeff breaks the news to Pierce but he had already figured what happened. Pierce advises Jeff to start a family now or he'll end up alone. Jeff tells Pierce he already has a family in the study group. Pierce then tells Jeff he would have acted the same way if the roles had been reversed and slept with his ex-stepdaughter. Jeff admits to having done just that and Pierce suggests it was to distract himself from his real pain. When he sees Slater with another guy Jeff starts to cry as Pierce comforts him.
"We always used to watch the shows she wanted to watch! I hate Glee!"
Troy and Abed's end tag hijinks in this episode is referenced in the Season Three episode "Remedial Chaos Theory". A refrigerator in their new apartment is decorated with a vending machine poster that has Troy as one of the item selections.