In this episode we are introduced to Rachel's other sister Amy, played by Christina Applegate who won a Golden Globe for her perfomance. Amy is a stuck-up self-involved person.
In this episode her married boyfriend cancels A Thanksgiving with her and Rachel invites her to Monica's wedding were her numerous antics include calling Emma as Emily, Pheobe as Emma, Monica as crazy plate lady, hoping Ross and Rachel will die so she can take Emma however she learns much to her dismay that Monica and Chandler would then get Emma and she also has a fight with Rachel after calling Emma "not even cute".
Meanwhile Joey is learning the art of lying from Pheobe because he mised a Thanlsgiving day appearance with the cast of his show Day of our Lives. A well-written hilarious episode that will go down as one of the greats.