In an effort to alleviate her boredom, Haruhi enters the SOS Brigade into a baseball tournament. Tsuruya, Taniguchi, Kunikida, and Kyon's sister are recruited to fill out the team. However, the team is hopelessly inept, bringing up the matter of Haruhi potentially destroying the world should her team lose. To remedy the situation, Yuki uses her powers to alter the course of the game.