A new trimester starts and Sakura is now a fifth grader. She walks to school with Yukito, who gives Sakura a watch as a late birthday and start of fifth grade present. Sakura's new homeroom teacher turns out to be Ms. Mizuki. Sakura looks out the window and thinks she sees cherry blossoms, but realizes it is snow. Later, the snow is piling very quickly, even though it is April. It turns out to be the doings of a Clow Card. Sakura with Tomoyo look down at the snow-covered city to find the card with the Fly card. They stop at the big penguin at Penguin Park where Syaoran and Meilin appear. Syaoran tells the group that it is the doings of the Snow card. Suddenly, a blizzard surrounds them and it appears to be following people with magical powers. Sakura tries to use the Fly card to get herself, Kero, and Syaoran away from the blizzard. Syaoran uses a fire spell to try to stop the blizzard from following them, but it just becomes more furious. In the middle of the flight, Sakura realizes the watch she got from Yukito is gone. Sakura gets angry and releases the power of Firey to burn all the snow and captures the Snow card. Even though Sakura caught a card, she cries because she lost Yukito's present to her. Kero leaves Sakura and Syaoran to get Meilin and Tomoyo. Ms. Mizuki appears and gives Sakura the watch she lost and Sakura thanks her, while Syaoran glares at Ms. Mizuki.

Sakura and her friends are at a picnic with a portable karaoke device Tomoyo got from her mother's company. It is Tomoyo's turn to sing, and she begins singing. The next day at school, Sakura and Tomoyo talk about the song that Tomoyo will sing in choir. At cheerleading practice, Sakura, Chiharu, and Naoko talk about Tomoyo's singing, and decide to go listen after practice. However, Tomoyo's voice is stolen by a Clow Card. Later that night at Sakura's house, Kero tells Sakura that the Voice card caused this. Sakura and Syaoran go to Tomoyo's house to try to seal away the Clow Card. Then, Syaoran and Sakura begin thinking of ways to capture the Voice card. After a comment by Sakura about the Song card, Syaoran comes up with the idea as using the Song card to sing with Tomoyo's voice to draw out the Voice card. It works and the Voice card comes into Tomoyo's house. Syaoran seals the exits with seals, so that the Voice card cannot escape and Sakura seals the card. Tomoyo's voice is returned to her, and she is able to sing in the choir. Sakura and her friends go to the concert and listen to the choir's singing.

Sakura’s class receives a new transfer student, Eriol Hiiragizawa, a boy from England, and he starts charming Sakura, making Syaoran jealous. Later on, Sakura receives a vision from Clow Reed that he may bring trouble to her, and that night an unnatural storm hits town. Sakura decides to investigate, and discovers that the storm was created by magic. Sakura tries to end the storm, however trouble arises when Sakura attempts to use her Clow Cards.

The challenge is over at last. All the cards have been captured, all have been turned. The tests are over, or are they? There may be just one remaining, one that may have to be resolved with the heart. Life has been difficult for Sakura and Li since the day Synoran confessed to sakura that he was in love with her, Li finds it difficult to approach Sakura, whilst Sakura herself is torn, not knowing if she feels the same way for Synoran. The two barly exchange words when they return to school, where they are told by Tereda-Sensi that Eroil is transferring back to England. Sakura, Li, Tomoyo [Armed with her camera as always] and Kero head for Eroil mansion, seeking answers, they are startled when the mansion's front door opens by itself, as do all the other doors from within the building. When the final door opens, the four are shocked to discover that Eroile is holding a party for them!

On her way home Sakura bumps into a woman in the street. After arriving at school the next day, Sakura discovers that her math teacher will be on extended vacation and the replacement is the woman she bumped into the day before, Ms Mizuki. During the lunch break Syaoran reveils to Sakura and Tomoyo that the substitute has a strong magical presence and that they should be careful around her. When school finishes Sakura and Tomoyo go to a shrine to pick up a romance charm. Upon arriving Sakura feels a presence. While at the Shrine they also see Meilin and Syaoran. After a brief conversation they are all transported into a labyrinth, it is soon discovered that this is the work of the Maze card. A number of escape attempts using the Fly and Sword cards are foiled. The Maze then starts to change shape and Meilin is separated from the others. While searching for Meilin, they find her with Ms Mizuki and they soon escape the labyrinth with Ms Mizuki's help. The Clow Card is then captured, however it goes to Ms Mizuki who promptly goes on to give it to Sakura.

Christmas is coming, which is also Yukito's birthday, but Sakura is unsure what to get him. She asks Meilin for advise who tells her it can anything because if the person likes her they will like the gift. Sakura asks Yukito to go to the amusement park with her, using tickets given to her by Chiharu. Tomoyo and Kero follow them to film Sakura's "date". Sakura and Yukito run into Syaoran and Meilin. While they are at a cafe, the Firey card appears. Syaoran uses the Time card, giving Sakura time to use Sleep and put everyone at the park asleep. She then tries to capture Firey using Windy, but Firey is a strong attack card and Windy is unable to defeat it. Sakura has to use two elemental cards, Watery and Windy, together in order to capture Firey. With Firey captured, Kero regains a small amount of his power, enabling him to make small fires. Sakura gives Yukito his Christmas present: a doll of himself.

It's April, the cherry trees are in full bloom, and Sakura has entered Tomoeda Middle School. She's reunited with Syaoran, who has returned from Hong Kong, and her new student life has begun.

Sakura has the same recurring dream she had in episode one, specifically focusing on the boy wielding a sword in Chinese clothing. She hears from both Cerberus and Yukito that it might be a "foretelling dream". A new transfer student arrives from Hong Kong named Syaoran Li and is seated behind Sakura. He terrifies Sakura with his glares all day and during recess, he demands Sakura to give him the Clow Cards. On the way home, there is a lighting storm, but no rain. Cerberus explains Syaoran is from the Li clan, a famous family of Chinese sorcerers from which Clow's mother came. The same lighting storm for earlier appears and Sakura deploys to battle the Thunder card. Syaoran demonstrates his command over elemental magic and calls on thunder god to return the Thunder card to its original form. He instruct Sakura to use the Shadow card to encage the Thunder card so it could be captured. Thanks to Syaoran's constant derogatory remarks, Sakura is left feeling upset after a card capture for the first time.

Naoko tells everyone a scary story about a bright light she chased into the woods. After school, Sakura and her friends visit the woods to see the light Naoko saw. When they do see it, everyone runs in fear, claiming they saw something appearing from the light, but everyone saw something different. Sakura returns at night in case it was a card despite her fear of ghosts. After following it near a cliff, the light takes the form of Sakura's deceased mother, Nadeshiko. Sakura, who is delighted to see her mother, walks towards it and off the cliff, but she is saved by an unknown entity and safely lowered into Yukito arms who is passing by. Sakura returns to the cliff a few days later and once again walks off the cliff. She realizes that it couldn't be her mother and discovers it to be really The Illusion.

Sakura is invited to the high school culture festival. She meets Tomoyo and Syaoran there and catches a play by Yukito and Toya's class. During the play, a mist forms outside the auditorium and enters through the vents where it destroys the stage and puts Toyo and a girl named Yoko in danger. Sakura and Syaoran head towards the lighting room where Sakura summons the Shadow card to capture the Mist card and Syaoran summons the wind to save the falling Toya and Yoko.

After waking up early, Sakura goes for a skate and remembers the dream she had the night before about a mysterious figure standing on the Tokyo tower. She soon ends up at the shrine were the Maze card was captured and meets Ms Mizuki. Sakura and Yukito go on to help Ms Mizuki clean the shrine. After school, Sakura and her father are together and it is revealed that Toya know Ms Mizuki when she was an assistant teacher while Toya was in Junior High. Kero is soon alerted to a strong presence coming from the shrine. While at the shrine they meet up with Syaoran who is also looking for the card. Kero soon slopes off to get drinks and Syaoran and Sakura are left to talk. Syaoran once again warns Sakura of how dangerous Ms Mizuki can be and they both admit their love for Yukito. Syaoran is so embarrassed that he runs off in distress and Sakura is swallowed by a dark shadow. It is soon revealed that it is the work of the Return card and that she has gone back in time. While in the past Sakura see a number of scenes involving her brother and Ms Mizuki and you find out that both appear to love each other, but she tells him to not linger in the past and look forward, since she has to go to England but, when she returns, Touya will have a new love in his life and both she and Toya will be best friends. Sakura is soon returned to the present with the help of Syaoran and the Time card and Sakura captures the Return card and it then goes to Syaoran.

During an attempted card capture, Kero and Syaoran were holding down a card (CHANGE) that took form of an animal. Sakura turned it back into a card, but because they were both touching the card at the same time, Kero and Syaoran swapped bodies. Kero tried to make it though a day as Syaoran without anyone noticing, but didn't do very well. At the end they finally change back when Sakura used the CHANGE card.

At an art museum trip, Sakura witnesses a boy attempting to change a painting. During the commotion, she couldn't hear anything and Kero is sure that it was caused by a Clow Card, The Silent. Sakura sneaks out of the house at night and into the museum where they meet the boy from earlier also sneaking in. The boy, Yūki Tachibana, explains the painting is by his deceased father and his mission to restore the painting which a Clow Card has covered up. Every time Sakura attempts to capture the card, it transports the group outside. Using The Shadow, Sakura is able to silently capture Silent from a distance restoring the painting and discovering Yūki is actually a girl. A stranger, dressed in an odd costume, appears at the end of the episode and quietly mutters that he senses a Clow Card.

Sakura, usually cheerful, is forlorn by Syaoran's confidence and obviously superior skill. Rika and Tomoyo take Sakura to a shop to try to cheer her up. The three each buy brooches and return to Sakura's house for tea and pudding. When Rika puts on her brooch, The Sword takes control of her and attacks Sakura with a sword. Syaoran saves Sakura who refuses to attack Rika and stops him from attacking her as well. Using Illision to distract Rika, Sakura is given the chance to capture Sword. The next day, Syaoran is dismayed when he sees Sakura offer a gift of chocolate to Yukito, and quickly gives sweets of his own. Tomoyo has to explain to Sakura that Syaoran is "interested" in Yukito just like Sakura is.

It's Sports Day at Sakura's school so family members has come to cheer the students on. Sakura meets Tomoyo's mother, Sonomi Daidōji for the first time. When Sonomi and Sakura's father, Fujitaka, meet, both are shocked. From their conversation, it is revealed that Sonomi is a cousin to Sakura's mother and she blames Fujitaka for her death, though not in any direct way. While Sonomi and Fujitaka race in the parent's race, there is a shower of flower petals. Sakura suspects a Clow Card and finds The Flower on the roof of the school.

Sakura is invited to Tomoyo's home for the first time. She is shocked to find Tomoyo's house to be an elaborate mansion with maids. Sonomi rushes over when she hears of Sakura's visit and shares the memories of Nadeshiko with Sakura over tea. While Sonomi is taking care of business over the phone, Tomoyo presents a special box and explains the key to the box bounces out whenever she tries to open it and Kero senses it's the work of a Clow Card. Sakura uses the Sword card to slice away the protective barrier of the Shield card and captures it. Inside the box is a dried bouquet of cherry blossoms from Sakura's mother's wedding and the first present Sakura ever gave Tomoyo, an eraser shaped like a bunny.

Sakura and Kero encounter some problems with time as Sakura, Kero and Syaroan find that they are the only ones who realize that Time is starting the same day over and over and over again. It's time for Sakura to take action and capture this time-meddling Clow Card!

When Syaoran enters the room, he's markedly pale and haggard compared to his usual tough-and-healthy look. When Meiling enters the room, it's clear that her presence has exhausted him and he is desperate to escape it. Mr. Terada explains that she is from Hong Kong and cousin to Syaoran. Meiling is quick to add that she is actually his fiancee, and obviously believes Sakura wants to take Syaoran away from her. Syaoran asks Meiling why she came, and she answers that she was lonely for him. He explains that he's not going back until he gets the Clow Cards, but she doesn't particularly care about that. She reminds him that a fortune-teller in Hong Kong predicted someone else would get them, a reminder that clearly grates on his nerves. It's only after he makes it clear he won't return home without the Cards that Meiling decides she will get involved and 'help', so that he can collect them faster.

Sakura Kinomoto awakens from a dream of standing near the Tokyo Tower. She introduces herself, her family, and her friends. After coming home from a normal day at school, Sakura hears a sound coming from the basement. She finds a glowing book and opens it to find a deck of 52 cards. When she accidentally activates the Windy card, the other cards blow out of her house. Cerberus appears from the book and formally appoints Sakura as the "Cardcaptor" and gives her the Sealing Wand. Sakura captures the Fly Card, but she adamantly insists she does not want the job. All the same, she shows quick thinking, considerable magical power, and sheer joy on her first ride on the tamed Fly

Sakura's family and Yukito takes a vacation to the country side. Sakura meets the old owner of a country mansion near their rented cottage. He invites her over for tea, tennis, and they become good friends. He shows her the room of his granddaughter, now deceased, and gives Sakura clothes that once belonged to her. The next day, Fujitaka gives Sakura cookies to give to the old man. When she brings them out to eat, the old man asks her about her father. On the last day of her vacation, Sakura asks the old man to stand in the balcony of his granddaughter's room. From a distance, Sakura uses the Rain card to give the old man a rainbow as a goodbye gift. Sonomi comes out of hiding to speak with the old man to reveal the old man is the grandfather of both Sonomi and Nadeshiko, and Sakura's great grandfather.

Sakura visits a festival with Tomoyo, Yukito, and Toya. After meeting Chiharu and Takashi, Sakura and Yukito wander away from the group where they find glowing lights falling from a tree like snow at the back of the shine — just like a dream Sakura envisioned the night before. Just as Sakura is about tell Yukito something, she is interrupted by their friends. When everyone leaves for snow cones, Sakura captures The Glow.

Sakura's father has an important presentation to complete so Sakura and her brother decide to help by taking on all the chores around the house. Sakura decides to do more and brings a snack for her father at the university. While she is there, the Sleep card shows up and starts to make all the students and professors fall asleep. Sakura manages to capture the card with the help of Windy, however her father's laptop is ruined in the process. Although her father forgives her, Sakura still feels guilty so her father deicides to make her his personal assistant and they eventually get the presentation finished.

When a rumor starts that a voice is heard in the elementary school music classroom, everyone assumes that it is a ghost singing (much to Sakura's dismay). That evening, Toya comes home with Yukito for a sleepover, much to Sakura's liking. When they arrive home Sakura asks Yukito for tea, and Toya asks, too. When they sit down and talk about the ghost, much to Sakura's dismay yet again, Toya starts on about some of the students hearing the voice some time at ten o'clock in the night. Sakura gets frightened, but then Yukito adds that he heard that the voice was really wonderful, so Sakura decides that she will check it out in case of a Clow Card and to record it. When they get there Sakura is obviously frightened. Then she gets a surprise from Syaoran and Meilin. Suddenly, they hear a voice coming from the music room. They decide to check it out. When they arrive at the music room. Meilin suddenly leaps up and opens the door to the room making the Clow Card disappear. Although Sakura recognizes the song and remembers that it is the song Tomoyo sang to her and will be doing the song for the chorus. They hear it yet again and follow it to the stairs. During the chase, Syaoran and Kero tell the rest that the Clow Card is the Song card.

When Tomoyo comes over to measure Sakura for a new outfit, Sakura comes in contact with the Little card, which shrinks her and her magic. While Tomoyo and Kero search for her, Sakura winds up in the backyard, being chased by a cat and a praying mantis. When Toya and Yukito come home, Tomoyo hides Kero while Sakura confronts the Little card, but it runs away from her. Eventually, Sakura chases the card into the kitchen, where it almost shrinks Toya, but it bounces away. The card bounces up the stairs, and Sakura gives up because it was not possible to continue. Luckily, she was then found by Kero, who explained the Little card to her. Meanwhile, Tomoyo is in Sakura's room when she hears the Little card. She is about to touch it when Sakura comes riding on Kero and runs into the Little card, thus returning to her normal size. She then seals the Little card. Later, Sakura, Tomoyo, Toya, and Yukito are enjoying Tomoyo's strawberry tart that she brought, when Sakura remembers that she promised Kero a piece. In the end, Sakura manages to get him a tiny slice. He whines and then uses the Little card to make himself tiny and eat the now huge slice of cake.

On her way home Sakura bumps into a woman in the street. After arriving at school the next day, Sakura discovers that her math teacher will be on extended vacation and the replacement is the woman she bumped into the day before, Ms Mizuki. During the lunch break Syaoran reveils to Sakura and Tomoyo that the substitute has a strong magical presence and that they should be careful around her. When school finishes Sakura and Tomoyo go to a shrine to pick up a romance charm. Upon arriving Sakura feels a presence. While at the Shrine they also see Meilin and Syaoran. After a brief conversation they are all transported into a labyrinth, it is soon discovered that this is the work of the Maze card. A number of escape attempts using the Fly and Sword cards are foiled. The Maze then starts to change shape and Meilin is separated from the others. While searching for Meilin, they find her with Ms Mizuki and they soon escape the labyrinth with Ms Mizuki's help. The Clow Card is then captured, however it goes to Ms Mizuki who promptly goes on to give it to Sakura.