I must preface this by saying that once again, this finale spoiler gives a lot away. Do not read if you are not 100% sure you want to know. Also, I received this information from a very reliable source but given that this is the finale and the spoiler contains the final scene of the show there is always the chance that this could be a foiler. You have been warned!
The episode will air on May 9, 2006.
Lorelei arrives at the Gilmore house for dinner. Emily askes Lorelei where Luke is and Lorelei avoids the subject. Rory is already there and she is talking on her cell to Finn and appears to be planning a party. It seems that the party would be for Logan since he has just graduated Yale and is leaving for London the next day. Later on Richard, Emily, Lorelei and Rory talk about a sign that is going to be on the side of an astronomy building. Rory is worried that it will be too big. The Gilmore maid for this episode, Gerta, shows Christopher into the room during this discussion. Later on Christoper and Lorelei are sitting in on a conversation between Emily and Carolyn. It seems as if there will be a party that evening. Meanwhile, Taylor is upset that a bunch of troubadours are gathered in the town square but nobody else seems bothered by them. The episode ends when Lorelei wakes up naked in Christopher's bed. Christoper is trying to explain to G.G. and the nanny Mirium why Lorelei is there as Lorelei begins to comprehend what has happened.