Jay has grown children, grandchildren and a gorgeous young wife, who has a preteen son of her own; all together they must bridge generational, cultural and social gaps.

Phil is determined to help Luke prove to mom that he is responsible enough to have the brand new bike they just got him. However Phil ends up being the irresponsible one when a hot neighbor clouds his judgment. Meanwhile Mitchell and Cameron take Lily to their first Mommy & Me class, and Jay and Manny have some awkward father and son time.

After some nudging, Jay begrudgingly takes Phil out to fly his new model airplane -- that is until a maneuver goes awry. Meanwhile, when Gloria drops Manny off to play with Luke, she ends up volunteering to take Alex dress shopping, and Claire finds herself sitting down for an unexpected brother and sister heart-to-heart with Manny.

Claire and Mitchell's mother, Dede, drops in for a surprise visit and is determined to make amends with everyone she offended during what has been deemed "the incident" at Jay and Gloria's wedding. Needless to say, no one is thrilled to see her and everything comes to a head when the whole family shows up to dinner at Claire's house.

It's the first day back at school for the kids and, at the Dunphy house, Phil oversteps when he misreads how Claire is coping with an empty nest. Over at Jay's, he and Gloria are in disagreement over Manny's interesting choice of outfit for his first day of class, and Mitchell and Cameron freak out after Lily gets her first bump on the head.