“The Sigh of Haruhi Suzumiya Part Three” “Suzumiya Haruhi no Tameiki III” (涼宮ハルヒの溜息III)

The SOS Brigade continue filming, though Haruhi is displeased with the battle sequence. Haruhi conjures the idea Mikuru shooting laser beams from her blue contact lens on her left eye. With Haruhi’s powers, the beam turns out to be real and fires dangerous invisible beams. Yuki protects Kyon from the laser shots before tackling Mikuru and removing the contact lens. While Haruhi changes Mikuru into a bunny girl outfit, the others discuss the situation. After filming for the remainder of the day, Haruhi leaves insisting on a tight filming schedule until the festival, including working on a Sunday. Yuki uses bite-injected nanomachines to counter Haruhi’s effects on Mikuru. The next day, Mikuru shows some unwillingness to resume prompting Haruhi to pick her up. Also, Haruhi adds Tsuruya, Taniguchi, and Kunikida to be extras in the film.

“The Sigh of Haruhi Suzumiya Part Two” “Suzumiya Haruhi no Tameiki II” (涼宮ハルヒの溜息II)

Preparation for the SOS Brigade’s short film continues, with character roles revealed. It seems that they take on the roles of their true nature, unbeknownst to Haruhi. On the first day of filming, the club films the two commercials to advertise their sponsors, as shown in the episode “The Adventures of Mikuru Asahina Episode 00”. They then film several scenes in a park, and Kyon points out that Haruhi did not actually write a script.

“The Sigh of Haruhi Suzumiya Part One” “Suzumiya Haruhi no Tameiki I” (涼宮ハルヒの溜息I)

Upon the start of a new term, North High School is preparing for the annual school cultural festival. Displeased with the class decision on a questionnaire, Haruhi tells Kyon that the SOS Brigade will do something more interesting. Influenced by a bad film the previous night, Haruhi commits the club for a short independent film with Mikuru and Itsuki as the protagonists, Yuki as the villain, and Kyon doing ‘menial tasks’ including the filming. Kyon and Mikuru accompany Haruhi as she negotiates shop owners for materials, such as an expensive camcorder and an airsoft gun for free upon willingness to sponsor the film.

“Endless Eight” “Endoresu Eito” (エンドレスエイト)

The loop continues for the 15,527th time. The scene where Kyon answers Haruhi’s call loops twice, the scene in which Kyon notices Yuki at the pool loops twice, and the scene where Haruhi says she left the last day of summer open just in case also loops twice. Kyon once again goes to bed without finishing his summer homework.

“Endless Eight” “Endoresu Eito” (エンドレスエイト)

The previous time loop continues for the 15,524th time. Kyon rides his bike and approaches Yuki. In that moment, he speculates his reason for doing so and simply lets her leave without conversation. Kyon goes to bed without finishing his summer homework once again.

“Endless Eight” “Endoresu Eito” (エンドレスエイト)

The previous time loop continues for the 15,521st time. The scene prior to Haruhi’s dismissal of group activities is repeated, showing the same event happening in this loop, and the next two loops. As the last day of vacation arrives, Kyon once again goes to bed without finishing his summer homework.

“Endless Eight” “Endoresu Eito” (エンドレスエイト)

The previous time loop continues for the 15,513th time. This time, Kyon mentally senses an even greater familiarity with events and places from previous cycles. Once again, none of the Brigade members can devise anything to stop the cycle from repeating. On their final meeting in the restaurant, Kyon tries to call out after Haruhi but fails to do anything as visions of the loop’s events flash in his mind. As Kyon regains his senses, Haruhi has left. As the last day of vacation arrives, Kyon, resigned to the loop repeating itself, goes to bed without finishing his summer homework.

“Endless Eight” “Endoresu Eito” (エンドレスエイト)

The same exact events in the previous episode once again unfold with slight variations and the gang wearing different clothes. Once again the Brigade, with the exception of Haruhi, finds out that they are trapped in an infinite loop. In this 15,499th loop, Kyon and the others once again are unable to discover how to escape the endless summer. In the same scene in the restaurant, Kyon is unable to stop Haruhi from leaving, hence dooming the world to another summer loop. Kyon again goes to sleep without finishing his homework on the last day of summer.

“Endless Eight” “Endoresu Eito” (エンドレスエイト)

Somehow summer vacation has repeated like the previous episode. Kyon is wracked by a sense of déjà vu. Itsuki is likewise troubled, while Yuki seems even more detached than usual. They finally figure out that Haruhi has put the last two weeks of August into an infinite loop because she refuses to let summer end. They find out that the loop has repeated 15,498 times with slight variations, but none of them can devise anything to stop the cycle from repeating. Upon their last meeting in a restaurant on last day, Kyon calls out after Haruhi in a last-ditch attempt to stop her from leaving, but fails to think of anything he can do, and she leaves. As the last day of vacation arrives, Kyon, resigned to the loop repeating itself, goes to bed without finishing his summer homework.

“Endless Eight” “Endoresu Eito” (エンドレスエイト)

Kyon’s relaxing summer vacation is interrupted by a sudden phone call. It appears that Haruhi wants the SOS Brigade to join her in summer activities and unfortunately for Kyon, Haruhi has a long list of activities she wants to try out. 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.

“Remote Island Syndrome (Part Two)” “Kotō Shōkōgun (Kōhen)” (孤島症候群(後編))

The SOS Brigade attempt to find clues to the murder of Keiichi. Yutaka Tamaru is initially suspect due to having been seen leaving the island the previous day before the storm hit. Kyon and Haruhi head outside during the storm, but find nothing, not even the boat. While drying off inside a cave, Haruhi comes to a startling conclusion about the murder, though there was a flaw to her story. They return to the villa and set to devising a plan to solve the mystery, but Haruhi later gives up trying to crack this case. Itsuki tells Kyon another theory to how the murder occurred, which leads the latter to prevent this from being known to the others. It is soon revealed that the murder was just a hoax to spur up excitement. Haruhi explains how she knew that the murder was faked. As the SOS Brigade set sail from the island, Itsuki says to Kyon that this was a plan to get Haruhi to keep her mind free from strange thoughts.

“Remote Island Syndrome (Part One)” “Kotō Shōkōgun (Zenpen)” (孤島症候群(前編))

A supposed distant relative of Itsuki, later recognized as Keiichi Tamaru, allows the SOS Brigade, along with Kyon’s sister, to stay at his newly built island villa. On their first day there, they enjoy the facilities and play outside on the beach, but are soon drawn inside by the arrival of a storm. While waiting for the storm to pass, Haruhi and her friends play games indoors and have fun together. Later, Keiichi disappears, and everyone starts searching for him. Ultimately, the SOS Brigade members find Keiichi dead in his room.

“Mystérique Sign” “Misuterikku Sain” (ミステリックサイン)

The website of the SOS Brigade website has been created, but it is composed of little more than the club logo. Coincidentally, the SOS Brigade gets their first case after the website goes up, in which the Computer Research Society president has been reported missing by Emiri Kimidori, who falsely claims to be his girlfriend. Upon going to his apartment, the club members see that he is nowhere to be found, and nothing seems too out of the ordinary on the surface. However, after Haruhi leaves, the others return back to the apartment where they enter a sealed reality somehow created by the president, trapped inside a data entity known as a camel cricket. Kyon and Mikuru watches as Yuki and Itsuki defeat the camel cricket, thereby recovering the president. It is later realized that the club logo that Haruhi had drawn was the catalyst for the sealed reality.

“Bamboo Leaf Rhapsody” “Sasa no Ha Rapusodi” (笹の葉ラプソディ)

On Tanabata, Kyon time travels with Mikuru on a mission exactly three years in the past. Kyon is guided by the future Mikuru to carry younger self, that she put to sleep, and is told to help someone. He finds a young Haruhi sneaking into her junior high school, and is forced to assist her, though keeping his name anonymous. After helping her draw strange symbols on the school athletics grounds, Haruhi questions him on the existence of strange beings, and Kyon suggests that they might exist because he knows someone like her at his school. After Haruhi leaves, Kyon wakes up Mikuru, only to find that she misplaces her time traveling device. They go to see Yuki, who helps them return to their proper time. Kyon wonders if he was the one who inspired Haruhi to attend his high school and start searching for strange beings.

“The Boredom of Haruhi Suzumiya” “Suzumiya Haruhi no Taikutsu” (涼宮ハルヒの退屈)

Haruhi has once again become bored. In an effort to alleviate some of this stagnation, Haruhi enters the SOS Brigade into a baseball tournament. Due to a lack of players, Tsuruya, Taniguchi, Kunikida, and Kyon’s sister are recruited into the team. However, the team is hopelessly inept, and if they lose, Haruhi might destroy the world. To remedy the situation, Yuki uses her powers to alter the course of the game.

“The Melancholy of Haruhi Suzumiya Part Six” “Suzumiya Haruhi no Yūutsu VI” (涼宮ハルヒの憂鬱VI)

One night, Haruhi’s power is activated without her knowing, and both she and Kyon become trapped in a sealed reality at their school. As Haruhi goes out on her own, Kyon is met by Itsuki, who tell Kyon that Haruhi might have created this world to be alone with Kyon. Yuki contacts Kyon via computer and gives the hint of Sleeping Beauty as a means to return back. Kyon and Haruhi are forced to evacuate when blue giant entities appear and begin to destroy the school and the surrounding area. Using hints provided by Yuki and Mikuru beforehand in order to defuse the situation and escape, Kyon kisses Haruhi as he expresses his desire to return to the old world. It remains unknown whether or not this world is the old one or a new one, however the three other members are glad to see Kyon back again.

“The Melancholy of Haruhi Suzumiya Part Five” “Suzumiya Haruhi no Yūutsu V” (涼宮ハルヒの憂鬱V)

Kyon is dragged into helping Haruhi attempting to investigate what happened to Ryoko’s strange disappearance without notice. After a fruitless search, Haruhi tells Kyon about her earlier years, and how she changed from an ordinary girl into her present state. Later that day, Itsuki tells Kyon about the theory of the anthropic principle correlating with Haruhi, and he believes that Kyon is the reason why Haruhi was able to wish of such extraterrestrial beings to exist. Itsuki brings Kyon into a sealed reality, where the latter watches the espers destroy a blue giant entity subconsciously created by Haruhi. When returning to his house, Kyon is told by Itsuki to look after Haruhi.

“The Melancholy of Haruhi Suzumiya Part Four” “Suzumiya Haruhi no Yūutsu IV” (涼宮ハルヒの憂鬱IV)

Haruhi is visibly bored and is not her usual energetic self. Ryoko Asakura, the class president, is concerned and asks Kyon to help her. Kyon later finds a mysterious letter in his locker, which directs to come to a classroom, where Ryoko confronts him. Revealed to also be an alien, Ryoko attempts to kill Kyon in order to provoke a reaction from Haruhi, but is stopped by Yuki. Later, Kyon meets Mikuru’s older self that had traveled from the future, who reveals that Snow White is the clue essential to his future. Ryoko was reported to never have transferred into the high school, much to Haruhi’s suspicion.

“The Melancholy of Haruhi Suzumiya Part Three” “Suzumiya Haruhi no Yūutsu III” (涼宮ハルヒの憂鬱III)

Yuki completes her explanation of the Integrated Data Sentient Entity and how it relates to herself and to Haruhi. Furthermore, she discusses Haruhi’s powers, and how she could destroy and recreate the world on a whim, even though she is not aware of her powers. Kyon, while simply trying to understand all of what Yuki had told him, is initially skeptical of her story. The SOS Brigade gets a new member, a mysterious transfer student by the name of Itsuki Koizumi. On a day off from school, the SOS Brigade searches the city in groups to try to investigate mysteries, during which Mikuru reveals to Kyon her existence as a time-traveler and her mission in relation to Haruhi. Kyon later confronts Itsuki, revealed to be an esper, and as he learns of the purpose of the Agency. All three of these members confirm that Haruhi somehow altered the reality of the universe three years ago.

“The Melancholy of Haruhi Suzumiya Part Two” “Suzumiya Haruhi no Yūutsu II” (涼宮ハルヒの憂鬱II)

Haruhi begins to improve the appearance of the clubroom, but still feels that it is missing something, that being a computer. Going next door, Haruhi manages to obtain a computer by having photographic proof of making it seem that the Computer Research Society president sexually harass Mikuru. She enlists the help of Mikuru to help promote the SOS Brigade by dressing up in a bunny costume and handing out fliers. Later, Yuki invites Kyon to her apartment, where she unveils that she and Haruhi are considered aliens.