Jay and Manny oppose Gloria's decision to hire a male nanny. Phil and Jay try to cheer up Frank. Mitch and Cam ask Pepper to help plan their wedding.

The family attends the annual school fair and Phil has a big 20th wedding anniversary surprise planned for Claire at the fairgrounds, but unfortunately, she simultaneously has a surprise for him back at home. Gloria signs Jay up to be a fair cop for the day and it gets worse when he’s partnered up with his nemesis. Elsewhere, Mitch, Cam and Lily try to enjoy the fair but Cam is in a funk from the football team’s recent losing streak, and Haley has an awkward first encounter with Andy.

Phil tricks Luke into taking a dance class, but the jokes on him when the white lie indirectly lands him in the slammer. Meanwhile, Jay and Gloria are throwing birthday parties for both Manny and Joe and are concerned Manny might be going for girls out of his league, and Mitch and Cam get a rude awakening in the cutthroat world of booking a wedding venue.

It’s male-bonding day when Jay takes Luke into the garage to show him the way around tools and impart some manly wisdom, and Gloria goes with Claire and Lily to shop for Lily’s flower girl dress. Elsewhere, Mitch, Cam, Alex and Manny go for a cultured day at the museum but it eventually becomes survival of the smartest. And Phil enthusiastically offers to help Andy with his anniversary gift to his girlfriend, which is an elaborate video expression of his love.

Mitch and Cam’s big day is finally here and nothing can ruin it, until nothing turns into a whole lot of somethings and puts wedding planner extraordinaire Pepper Saltzman to the test. Meanwhile, Jay and Gloria host the Tuckers, Phil squeezes in an eye procedure before the festivities and Claire embraces her role as “best woman".

The wedding day chaos continue as the entire party shifts from one contingency plan to another. Guests start to get testy, Mitchell and Cameron are feeling discouraged and poor Claire shows physical wear and tear, but an unexpected turn of events leads to the ceremony we’ve all been waiting for.

The Dunphys are down with a cold, thanks to Phil. Jay and Gloria try to help Manny deal with playing football, and Cameron doesn't know how much playtime to give him. Mitchell debates with Lily's new friend, Sydney.

Haley and Andy start spending a lot of time together. Gloria wants Manny to learn Spanish at school instead of French, and a reporter takes more than a passing interest in Cameron and Mitchell's lives.

When Phil thinks Luke is giving him the cold shoulder, Andy becomes Phil's new right-hand man. Joe might be allergic to Stella.

Claire does some online snooping that causes drama with the rest of the family.

When their competitor releases a catchy ad, Claire and Jay race to shoot a commercial of their own.

Jay's birthday comes with a number of interesting gifts, including Phil's high-tech outdoor grill, and Claire and Mitchell's offer to pay back some ancient loans—though they don't think he'll actually accept it. Meanwhile, Gloria teaches Manny and Luke a lesson about drinking; and Andy finds himself in an awkward situation when Haley brings her new doctor boyfriend.

The sixth season ends with Alex's graduation party at Jay and Gloria's house, but Phil is stuck in Seattle on a business trip, so he uses the latest in technology to be as close as he can get. Meanwhile, Claire worries about Alex's gift, Jay complains that Gloria's cousin has overstayed his welcome, Mitchell keeps the news of his layoff a secret from Cameron, and a visit from Andy's girlfriend turns Haley's world upside down.

Haley gets back together with Dylan. Alex and Sanjay plan their breakup since they are both going off to college. Mitchell avoids finding a new job and takes up art. Jay and Gloria try to find a good preschool for Joe.

Phil is surprised by Claire's reaction to Luke's arrest; Mitchell helps Gloria figure out the secret to her family sauce recipe.

Phil is selling an upscale home where various members of the family sneak off for alone time.

Gloria wins a silent auction to have a therapist come for an afternoon with the adults; Haley and Alex consider dumping their boyfriends.

Gloria's plans for a White Christmas don't go as planned.

A powerful storm hits Los Angeles and causes widespread power outages, so the entire Pritchett clan hunkers down at Jay and Gloria's house to use their generator. Meanwhile, Phil tries to make amends for an embarrassing moment, Mitchell and Cameron desperately try to save Lily's birthday party, and Haley turns on her charm for Andy.

Phil has the crazy idea of going on a spontaneous trip to Paris with Claire, the only problem is that they are both so ridiculously tired but try to push through it. Jay has taken over their bathroom remodel, which proves to be pretty hazardous for Gloria, Manny and Joe. Cameron's sister Pam is staying at the house after her husband has left her, but her emotional outbursts are driving Mitchell crazy. And Haley and Andy go on a wild night bender.

Claire can’t seem to find the right time to fire one of her employees, while, back at home, Phil thinks he caught Luke with a girl in his bed, and no one seems to notice that Alex has moved back home for the summer. Jay refuses to accept that it might be harder to reenter the workforce than he thought, and Cameron and Mitch butt heads on how to share time with Lily now that Cameron took a summer job in Kansas City.

Haley meets Arvin’s parents but when things don’t go as planned, fate leads to an unexpected reunion with all of her ex-boyfriends. Meanwhile, the family seizes on a nursing home visit with Jay’s mean sister, Becky, to settle old scores. But as Jay, Claire and Mitchell compete for her time, Phil, Cam and Gloria end up getting trapped in the home’s basement with no way out.