The story takes place from December 16 until December 24, a month after the cultural festival. The SOS Brigade, led by Haruhi Suzumiya, make plans to have a nabe party for Christmas. However, on the morning of December 18, Kyon arrives at school and finds out everything has changed. Haruhi and Itsuki Koizumi are missing, Ryoko Asakura has mysteriously returned, Mikuru Asahina does not recognize him and Yuki Nagato is an ordinary human. Only Kyon is aware that everything is different, as no one remembers anything about Haruhi or the SOS Brigade.
This is a very interesting movie, as expected. I sure missed watching Haruhi and the gang. There were unpredictable scenes, of course. Not boring at all. Probably one of the best anime movies I've watched.
[via anime freak]