Baron von Steuben helps train the Continental Army during the American Revolution; John Adams and Thomas Jefferson campaign for president; Benedict Arnold switches sides to fight against George Washington's army.
Carol takes care of Mikayla while Debbie and Adam are at a vegetarian convention, while Nathan spends the weekend with Tom.
Nathan tries to finally find something to suprise his mother for her birthday with.
When Nathan refuses to continue being Carol's chauffeur, Adam takes over and the two form an unexpected bond which surprises everyone.
Nathan gets his own news segment to complain after using his mother's incessant rants. When he starts irritating Carol on purpose, things get out of hand quickly.
Debbie suspects Nathan and Carol of reading her diary.
Carol has to reveal she never told her parents about the divorces in her family when they announce their visit for Christmas. Unwilling to te,, them the truth, Carol asks everyone to play happy family for her parents.moreless
When Debbie and Nathan learn that their parents have a favorite child, both try to change their parents' minds.
Nathan and Ray start corresponding with someone they met through Carol's profile on an Internet dating site.
Carol gathers the whole family to have "the talk" about bees and birds with Nathan when she learns Tom never covered that part.
Nathan tries to get his parents back together.
Nathan and Debbie find out what really happened to their pet parrot that flew away when they were kids.
Carol tries to find out why Nathan is seeing a therapist.
When both Miller siblings come to the conclusion that the other one got the easier parent, Nathan and Debbie decide to trade parents.
The New Directions learn of Finn Hudson's death and they pay tribute to him.
Carol decides that recent events call for a rearrangement of the family's positions in the Millers cementery plot, forcing Nathan to contact his ex-wife Janice about it.
The gang prepares for Andre's wedding. Meanwhile, Ruxin tries to get back in the league.
The gang heads to Los Angeles for a wedding and the annual fantasy draft.
The Time Angels return to go to the Wild West.
The New Directions prepare for Regionals, and are determined at another win at Nationals. Brittany dons a new attitude after returning from her trip to M.I.T. Ryder has a lead to whoever is "cat fishing" him.moreless
Ted and Barney's future versions attempt to persuade present day Ted to go see Robots Versus Wrestlers. Marshall and Robin have a dance-off.
As everyone recovers from Will and Emma's wedding, their glee club is given the assignment to sing their favorite song from a movie. Meanwhile in New York, Santana makes herself at home in the loft a little too quickly for Rachel and Kurt's comfort. Also, the members of the New Directions sing the hit series' landmark 500th musical performance.moreless
Will and Emma's wedding day has finally here and is celebrated in front of current and past members of New Directions.
Finn instructs the glee club to discover the inner powerhouse in themselves in preparation for Diva Week. Kurt and Rachel's friendship hits a strain when he can no longer take her arrogant behaviour. Emma prepares for her wedding to Will.moreless