Endless Eight


 * You may be looking for the Endless Eight episodes of the anime:
 * Endless Eight - Part 1
 * Endless Eight - Part 2
 * Endless Eight - Part 3
 * Endless Eight - Part 4
 * Endless Eight - Part 5
 * Endless Eight - Part 6
 * Endless Eight - Part 7
 * Endless Eight - Part 8
 * You may be looking for The Rampage of Haruhi Suzumiya light novel, which contains the Endless Eight short story.
 * This is also the name of two manga chapters.