Kyon's relaxing summer vacation is interrupted when Haruhi summons him and the SOS Brigade to join her in summer activities, wanting to try as many activities as possible. As such, the group is taken on a whirlwind tour of summer activities for the next two weeks. They relax at the swimming pool, attend the upcoming summer festival, shoot off fireworks, hunt for bugs, take on a part-time job, stargaze, and play baseball at a batting range. They also watch a fireworks display, compete in a fishing tournament, travel through a cemetery, watch a blockbuster, go to the beach, go bowling, and sing karaoke. Finally, having gone through Haruhi's entire list, the last day of August arrives. Though Kyon tries to make up for his lost time by doing his neglected summer homework, he eventually gives in to distraction and goes to bed without finishing it.