I will be doing this in Season 2 way of watching instead of season 1 way of watch, I will post the next after the television series.
Episode 1: Kyon enters high school as a first year student and meets a strange girl named Haruhi Suzumiya. During her class introduction, she states that she has no time for normal humans and asks that any time-travelers, aliens, or espers come out and join her. Interested in her, Kyon becomes the first person to solicit a normal conversation from Haruhi. This leads Kyon and Haruhi to form the SOS Brigade. They recruit the soft-spoken Yuki Nagato and the timid Mikuru Asahina.
Episode 2: Haruhi begins to improve the appearance of the clubroom. Haruhi obtains a computer by staging photos making it look like the Computer Research Society president sexually harassed Mikuru. She enlists the help of Mikuru to 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 not ordinary human beings.
Episode 3: Yuki explains the Integrated Data Sentient Entity and how it relates to herself and to Haruhi. She says Haruhi could destroy and recreate the world on a whim, and is unaware of her powers. A transfer student named Itsuki Koizumi joins the SOS Brigade. On a day off from school, the SOS Brigade splits up to search the city for mysteries, during which Mikuru tells Kyon she is a time-traveler assigned to observe Haruhi. Kyon confronts Itsuki, who admits to being an esper, and tells the purpose of the Agency. Yuki, Mikuru, and Itsuki all confirm that Haruhi recreated the universe three years ago.
Episode 4: Kyon finds a mysterious letter in his locker, which directs to come to a classroom, where Ryoko Asakura, the class president, confronts him. Also an alien, Ryoko attempts to kill Kyon in order to provoke a reaction from Haruhi, but is stopped by Yuki. Yuki has Ryoko transferred out of the high school, much to Haruhi's suspicion. Kyon meets Mikuru's older self that has traveled from the future, who reveals that Snow White is the clue essential to his future.
Episode 5: Kyon is dragged into helping Haruhi investigate Ryoko's strange transfer. During the search, Haruhi tells Kyon about her childhood, and how she became obsessed with paranormal phenomena in an effort to overcome her feelings of insignificance. Itsuki tells Kyon about the theory of the anthropic principle correlating with Haruhi. He believes Kyon is the reason why Haruhi was able to wish extraterrestrial beings to exist. Itsuki brings Kyon into a sealed reality, where the espers destroy a blue giant entity subconsciously created by Haruhi. Itsuki tells Kyon to look after Haruhi.
Episode 6: One night, Haruhi's power is activated, and she and Kyon are trapped in a sealed reality at their school. While Haruhi investigates, Kyon is met by Itsuki, who tell him that Haruhi is creating a new world, retaining only Kyon from the old one. Yuki contacts Kyon via computer and gives the hint of Sleeping Beauty as a means to stop Haruhi. Blue giant entities appear and begin to destroy the school and surrounding area. Kyon kisses Haruhi as he expresses his desire to return to the old world. He wakes up in his bed. Haruhi believes the whole experience to have been a nightmare, but puts her hair in a ponytail in accordance with a wish Kyon expressed in the sealed reality.
Episode 7: 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, and if they lose, Haruhi might destroy the world. To remedy the situation, Yuki uses her powers to alter the course of the game.
Episode 8: On Tanabata, Mikuru takes Kyon three years into the past. There she is put to sleep by her future self, who tells Kyon to help out a certain someone. Kyon sees a young Haruhi sneaking into her middle school and helps her draw strange symbols on the athletics grounds, keeping his identity secret. Haruhi questions him about strange beings; he says they might exist because he knows someone like her at his school. After Haruhi leaves, Kyon wakes Mikuru, who has misplaced her time travel device. The two visit Yuki, who helps them return by having them sleep in a time stasis field in her apartment. Kyon wonders if he was the one who inspired Haruhi to attend his high school and search for strange beings.
Episode 9: Haruhi has Kyon add a logo of her design to the SOS Brigade website. Emiri Kimidori asks the SOS Bridgade to find her boyfriend, the Computer Research Society president. When they fail to immediately find him at his apartment, Haruhi grows bored of the case. After she leaves, the others enter a sealed reality created by the president, trapped inside a data entity. Yuki and Itsuki defeat the data entity, recovering the president. The club logo Haruhi drew was the catalyst for the data entity. The president says that he has no girlfriend, leading Kyon to suspect Yuki engineered the case to stave off Haruhi's boredom.
Episode 10: A 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 on the beach. On the second day, they are kept inside by a storm, and play in the games room. The next morning, Keiichi's brother Yutaka Tamaru is missing, and the SOS Brigade members find Keiichi dead in his room.
Episode 11: The SOS Brigade investigate Keiichi's murder. Yutaka is suspect, having been seen leaving the island. Kyon and Haruhi head outside to confirm he took the boat, and Haruhi spies a shadowy figure. After their pursuit fails, Haruhi comes to a startling conclusion about the murder, but won't share it with Kyon. Itsuki tells Kyon that she has probably concluded that the SOS Brigade accidentally killed Keiichi when they broke into his room. However, further deductions lead Haruhi to the discovery that the "murder" was a hoax. Itsuki tells Kyon that this was a plan to prevent Haruhi from using her power to cause a real murder.
Episode 12: Haruhi summons the SOS Brigade to make the most of summer vacation. The group is taken on a whirlwind tour of summer activities. They play at a swimming pool, attend Bon Festival, shoot off fireworks, hunt for bugs, work a part-time job, stargaze, play at a batting range, watch a fireworks display, compete in a fishing tournament, explore a cemetery, see a blockbuster, go to the beach, go bowling, and sing karaoke. Having gone through her entire list, Haruhi still seems unsatisfied but gives them the last day of August off. Though Kyon tries to do his neglected summer homework, he gives in to distraction and goes to bed without finishing it.
Episode 13: Haruhi takes the SOS Brigade on a whirlwind tour of summer activities. Kyon is wracked by déjà vu, and when Mikuru finds she can't return to the future, Itsuki figures out that Haruhi has put the last two weeks of August into an infinite loop. Yuki reports that the loop has repeated 15,498 times, though with variations on individual events. At their meeting in a restaurant on August 30, Kyon realizes the truth in Itsuki's theory that Haruhi is repeating summer vacation because there is one more thing she hopes to do. He fails to think of anything he can do to satisfy her, and resigns to the loop continuing.
Episode 14: The same events in the previous episode once again unfold with slight variations. In this 15,499th loop, Kyon and the others once again fail to discover how to escape the endless summer.
Episode 15: The time loop continues for the 15,513th time. Kyon mentally senses an even greater familiarity with events and places from previous cycles.
Episode 16: The time loop continues for the 15,521st time.
Episode 17: The time loop continues for the 15,524th time.
Episode 18: The time loop continues for the 15,527th time. The scene where Kyon answers Haruhi's call, the scene in which Kyon notices Yuki at the pool, and the scene where Haruhi says she left the last day of summer open just in case all loop twice.
Episode 19: The loop continues for the 15,532nd time, but as Haruhi leaves on August 30, Kyon beckons the SOS Brigade to finish their summer homework together. Haruhi berates him for giving the group orders, but decides to come even though she already finished her homework in July. With Haruhi satisfied that she made the most of her summer, Kyon finally wakes up on September 1 to embrace a new school term. Itsuki hypothesizes that because of Haruhi's superior intellect, she had never shared up school work with friends before.
Episode 20: 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 and with a film she saw the previous night, Haruhi commits the club to an independent film with Mikuru and Itsuki as the protagonists, Yuki as the villain, and Kyon doing menial jobs such as cameraman and gofer. Haruhi negotiates with shop owners for free equipment, obtaining an expensive camcorder and an airsoft gun.
Episode 21: Preparation for the SOS Brigade's short film continues, with the main characters' roles eerily matching their actual nature. On the first day of filming, the club shoots two commercials advertising their sponsors, before filming several scenes in a park, at which point Kyon learns that Haruhi doesn't have a written script and is planning on ironing out the plot in the editing phase.
Episode 22: Haruhi insists on a tight filming schedule, including working on Saturday and Sunday. Displeased with the battle sequence, she conjures the idea of Mikuru shooting laser beams from the blue contact lens on her left eye. During filming of the scene, Mikuru actually fires deadly beams. Yuki protects Kyon and tackles Mikuru to remove the contact lens and hide it from Haruhi, who adapts the film's plot to account for Mikuru not having the contact lens in every scene. Recognizing that Haruhi's wish for a laser beam caused the incident, Yuki injects nanomachines to counter the effect on Mikuru. Haruhi adds Tsuruya, Taniguchi, and Kunikida as extras in the film.
Episode 23: As the SOS Brigade continues filming, Haruhi has Mikuru thrown in a polluted lake by the extras. Tsuruya offers her place as a filming location, where Haruhi dresses Mikuru in a revealing nightgown and spikes her drink with alcohol as prep for a romance scene with Itsuki. Furious at Haruhi's shabby treatment of Mikuru, Kyon argues with her and tries to hit when she insists on having her way. Itsuki stops him. Haruhi becomes depressed by her falling out with Kyon. After becoming irritated by Taniguchi's rude comments about the film, Kyon tells Haruhi he is newly resolved that they finish the film, which reinvigorates her. As filming resumes, her powers start causing cherry blossoms to bloom out of season.
Episode 24: Deciding Yuki needs a familiar for her role, Haruhi picks up a stray male calico cat, naming it Shamisen. When Haruhi leaves, Shamisen starts talking as a result of Haruhi's power. Itsuki suggests reminding Haruhi that her movie is fictional, before reality incurs further damage. Mikuru and Yuki share their independent views about Haruhi. Kyon convinces Haruhi to add a disclaimer over the credits saying it is a work of fiction. After the filming, Kyon and Haruhi remain at the club room overnight to do the editing. They both fall asleep, but awake the next day to find the movie has been completed. In a flashback to May, Kyon tells Haruhi the truth about the other club members, but she does not believe him.
Episode 25: The SOS Brigade previews their movie of questionable quality, directed by Haruhi Suzumiya with narration by Kyon. In the movie, Mikuru Asahina stars as a time-travelling waitress from the future who must engage in fights with Yuki Nagato, who is playing as an alien-magician. Mikuru has sworn to protect a young man, played by Itsuki Koizumi, but a love-triangle ensues with both Mikuru and Yuki striving for Itsuki's affections.
Episode 26: On the day of the school's cultural festival, Yuki does fortune telling, and Itsuki stars in the tragicomedy Rosencrantz and Guildenstern Are Dead. Mikuru and Tsuruya run a yakisoba café. Kyon, recovering from his all-nighter working on the SOS Brigade's film, wanders sleepily among the exhibits. Haruhi and Yuki fill in for a rock band on vocals and guitar when two of the members have last-minute medical situations. The performance is a smash success, and the band thank Haruhi effusively. Afterwards Haruhi is restless. Kyon thinks that Haruhi is rethinking her life due to the new experience of being appreciated by others, but it turns out she just wants to start up her own rock band.
Episode 27: The Computer Research Society challenge the SOS Brigade to a computer game they created for the cultural festival, The Day of Sagittarius III. The stakes are the computer Haruhi extorted from them earlier in the year or computers for all the SOS Brigade members if they win. Haruhi accepts the challenge. Kyon insists that Yuki and Itsuki not use their powers, resolved that Haruhi has to learn to lose someday. During the contest Yuki finds out the Computer Research Society cheated by disabling the fog of war on their side, and hacks the code to restore it. The SOS Brigade wins. Awed by Yuki's hacking skills, the Computer Research Society invites her to spend time with them.
Episode 28: With winter setting in, Haruhi orders Kyon to pick up a heater. With him gone, she takes pictures of Mikuru in various costumes for the movie's DVD cover, Itsuki helps, and Yuki is left alone to read. When Kyon returns, he finds only Yuki in the club room and falls asleep waiting for the others. He is woken by Haruhi (the only other student who hasn't gone home) putting her cardigan on him to keep him warm. Haruhi is mortified at being caught, but Kyon is only interested in the fact that he also has Mikuru's cardigan. Haruhi is in a good mood as she and Kyon share an umbrella on the walk home through the rain.
I will include a list of the episode unlike other anime look back which I did not include episode title in the post as most of them are long running series, here is how am going to list it episode number followed by the episode title of Season 2 and I will repeat again but in season 1 order of watch from two different character, I will only put three watching order and not four as Season 1 has a different watching order of its home release, so here it is:
Season 2 watch order
Episode 1: The Melancholy of Haruhi Suzumiya Part One
Episode 2: The Melancholy of Haruhi Suzumiya Part Two
Episode 3: The Melancholy of Haruhi Suzumiya Part Three
Episode 4: The Melancholy of Haruhi Suzumiya Part Four
Episode 5: The Melancholy of Haruhi Suzumiya Part Five
Episode 6: The Melancholy of Haruhi Suzumiya Part Six
Episode 7: The Boredom of Haruhi Suzumiya
Episode 8: Bamboo Leaf Rhapsody
Episode 9: Mystérique Sign
Episode 10: Remote Island Syndrome (Part One)
Episode 11: Remote Island Syndrome (Part Two)
Episode 12: Endless Eight I
Episode 13: Endless Eight II
Episode 14: Endless Eight III
Episode 15: Endless Eight IV
Episode 16: Endless Eight V
Episode 17: Endless Eight VI
Episode 18: Endless Eight VII
Episode 19: Endless Eight VIII
Episode 20: The Sigh of Haruhi Suzumiya Part One
Episode 21: The Sigh of Haruhi Suzumiya Part Two
Episode 22: The Sigh of Haruhi Suzumiya Part Three
Episode 23: The Sigh of Haruhi Suzumiya Part Four
Episode 24: The Sigh of Haruhi Suzumiya Part Five
Episode 25: The Adventures of Mikuru Asahina Episode 00
Episode 26: Live Alive
Episode 27: The Day of Sagittarius
Episode 28: Someday in the Rain
Now is Kyon watching order also known as the airing order it will be like above but there will be another set of number at the end and that number would be Haruhi's watching order.
Episode 1: The Adventures of Mikuru Asahina Episode 00 :Episode 11
Episode 2: The Melancholy of Haruhi Suzumiya Part One :Episode 1
Episode 3: The Melancholy of Haruhi Suzumiya Part Two :Episode 2
Episode 4: The Boredom of Haruhi Suzumiya :Episode 7
Episode 5: The Melancholy of Haruhi Suzumiya Part Three :Episode 3
Episode 6: Remote Island Syndrome (Part One) :Episode 9
Episode 7: Mystérique Sign :Episode 8
Episode 8: Remote Island Syndrome (Part Two) :Episode 10
Episode 9: Someday in the Rain :Episode 14
Episode 10: The Melancholy of Haruhi Suzumiya Part Four :Episode 4
Episode 11: The Day of Sagittarius :Episode 13
Episode 12: Live Alive :Episode 12
Episode 13: The Melancholy of Haruhi Suzumiya Part Five :Episode 5
Episode 14: The Melancholy of Haruhi Suzumiya Part Six :Episode 6
Now on the movie's summary
Following on from the events of The Melancholy of Haruhi Suzumiya anime television series, the story takes place from December 16 until December 24, a month after the cultural festival. The SOS Brigade, led by Haruhi Suzumiya, makes plans to have a nabe party for Christmas. However, on the morning of December 18, Kyon arrives at school and finds that the very nature of his reality 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 and no one else remembers anything about Haruhi or the SOS Brigade. The only clue Kyon manages to find is a bookmark left by the alien version of Yuki before everything was changed, telling him to gather "keys" to run a program. While wondering about this clue, he gets to know the new Yuki, who appears to be quite fond of him. As December 20 comes, Kyon learns from Taniguchi that Haruhi was at another high school the whole time, along with Itsuki and others formerly from his school. By revealing his identity to her as 'John Smith', an alias he had used when he travelled back in time to assist a young Haruhi, Kyon manages to convince Haruhi to believe his story. With her assistance they gather the SOS Brigade together in the club room, thus bringing the keys necessary for a program built by alien Yuki.
Wanting to go back to his interesting life, Kyon activates the program and goes back in time to the Tanabata of three years ago. After meeting up with the future Mikuru, he obtains an uninstall program from the past's Yuki, which needs to be shot at the culprit right after the change in the early hours of December 18. Returning to the present, they find the culprit, Yuki, who had borrowed Haruhi's power to change everyone's memories except Kyon's, giving him the choice of which world he would rather live in. Kyon questions himself about his choice and thinks to himself that a normal world without the SOS Brigade and Haruhi Suzumiya would be calm and peaceful and thinks Yuki was tired of everything she had to do like monitoring Haruhi's behavior and protecting Kyon, but finally decides that his original world was more interesting and fun. Kyon tries to install the program into Yuki but is stabbed by Ryoko, who had retained her psychotic behavior. Before Ryoko can finish him off, he is rescued by future counterparts of Yuki, Mikuru and himself. He wakes up a few days later in a hospital, where the world is back to normal, but almost everyone believes Kyon had been in a coma since December 18 after falling down the stairs. When Yuki mentions to Kyon how the Data Integration Thought Entity would punish her for her actions, Kyon tells her to let them know that if they ever try such a thing, he can tell Haruhi about him being John Smith and have her alter reality so the organization would cease to exist. As December 24 comes and his everyday life returns, Kyon decides there is still time before he has to go back in time to save himself and decides to join in on the Christmas party.