With Jay and Gloria's baby on the way and Haley going off to college, the entire Pritchett-Dunphy clan faces some major surprises as they bicker and bond over house-flipping headaches, unwanted play dates, and everything from hot-tempered hormones to in utero karaoke.
Phil takes Jay on an unconventional fishing trip; Gloria wonders how to break the news about her pregnancy; Dylan temporarily moves in with the Dunphys; Cam and Mich think about adopting a cat.
Claire and Phil embarass Haley when they drop her off at college; Manny makes Gloria and Jay take a class; Lily gets into a tussle on her first day of kindergarten.
Phil gets a vasectomy; Gloria and Jay can't agree on whether or not they should find out the sex of the baby; Mitchell tries to steer Cameron towards getting a part-time job.
Luke wants to quit magic and Phil just can't seem to accept it. Meanwhile, one of Gloria's new pregnancy symptoms is snoring and she's keeping the whole house awake, forcing Jay to take desperate measures; and Mitch and Cam's household dynamic is put to the test when they decide to swap duties -- Mitch staying at home with Lily while Cam goes off to work at his new job as the music teacher at Luke and Manny's school.
Claire must reign in her enthusiasm for Halloween and keep her celebration kid-friendly; Phil decides to hold an open house on Halloween; Mitch and Cam have a costume party; Gloria's hormones make her more quick-tempered than usual.
Jay and Gloria hold a yard sale to help Manny and Luke with their school's charity fundraiser, and the entire family pitches in: Phil feels pressured to both sell and buy something, Mitch and Cam help Claire assess Alex's new 'boy friend,' and Manny finds an old trunk that hides a secret Gloria wants to see remain a secret.
Cameron watches Alex and Luke while Phil, Claire and Mitchell deal with Haley's arrest; Jay tries to cut a surprise visit from Dede short, so she doesn't learn about Gloria's pregnancy.
When Claire takes Manny and Luke along to Alex's academic decathlon for the weekend, Phil attempts to throw together a boys' night at the house. Cam and Mitch arrange for quite the surprise baby gift for Jay and Gloria.
Mitch and Cam try to save an old tree in the park. Jay takes Manny to a kid's Olympics-themed birthday party. Gloria and Claire have an eventful shopping trip.
When Manny and Luke's Little League team makes it to the playoffs, Claire and Cameron search for a field to use. Gloria uses a microphone to sing to the baby.
Jay and the family plan to celebrate New Year's together at a hotel in Palm Springs, but the hotel doesn't meet their expectations; Alex and Haley are faced with challenges as they try to watch the kids back at home.
When Gloria's mother and sister visit, they bring traditions, baby names and family baggage; Phil helps the kids with their problems; Mitchell and Cameron try to correct Lily's bad habits.
When the lead in the school's production of "Phantom of the Opera" gets sick, Manny is willing to do anything to land the lead; Phil and Jay wind up in a golf-off with Mitch and Pepper; Gloria and Alex visit a psychic.
Claire and Phil’s Valentine’s Day romp ends with Claire in the hospital. Jay and Gloria’s attempts at romance face constant interruption. After hosting a wild party, Cam and Mitch are left with hangovers and a new housemate.
Things get awkward when Phil shows up at Claire's college reunion. Jay is fixated on winning a big bowling tournament. A wig malfunction during an elaborate photo shoot with Joe leads to unfortunate results.
Mitch and Cam's friend Sal announces she's getting married the next day and they are in the wedding; Gloria doesn't trust her new nanny; Claire bonds with Haley; Phil helps Luke with a girl.
Claire and Cam bring in a third party (Wendi McLendon-Covey) when they reach an impasse on a landscaping decision; Phil teaches basic fix-it skills to the kids; Mitch helps Lily with a bully.
At the hospital Claire and Phil see the older version of their family; Mitchell and Cameron plan a day for Lily and Gloria; Manny and Jay go to a private school to look around.
Phil gets desperate when Cam and Claire’s flipped house is more difficult to sell than expected; Javier brings his new girlfriend along to visit Manny.
Phil is jazzed to share the wonders of residential real estate with Luke and Manny’s classmates for career day. Gloria challenges Jay’s claims of always wanting to become a novelist. Mitch and Cam make a costly mistake while executing tooth fairy duties.
Mitch’s ex-boyfriend, a personable and successful doctor, invites the whole family to a fundraising event at a roller rink; Phil teaches Gloria how to skate; Haley helps Alex talk to boys.
Phil gets a new RV for a fun family road trip. Jay and Gloria search for Manny's backpack. Lily's gymnastics meet brings out Cam and Mitch's competitive spirit.
Everyone flies down to Florida to be with Phil after his mom's passing. Claire helps Phil with Gracie's last wish for Frank, and the kids reflect on the gifts grandma left for them. Gloria has to contend with an outstanding arrest warrant in Florida, Cam finds himself fitting right into an elderly women's group at Frank's retirement community, and Jay runs into a pivotal person from his past.