S1E1 - To the Alps
Heidi is taken to her grandfather's house by her Aunt Dete.
Jan. 6, 1974, midnight
S1E2 - Grandfather's Cabin
Heidi joyfully gets accustomed to her new surroundings.
Jan. 13, 1974, midnight
S1E3 - The Mountain Pasture
Heidi goes with Peter, the local goatherd, to the pastures and enjoys a day of fun-filled picnic there.
Jan. 20, 1974, midnight
S1E4 - Another Member in the Family
While out on the pastures one day, Heidi encounters a storm. After braving it, she finds a nestling and decides to raise it.
Jan. 27, 1974, midnight
S1E5 - The Burnt Letter
Pichi is taken by Heidi to the mountain pastures and has another thrillingly exciting day filled with dangers. Meanwhile, through Peter, Alm-Uncle receives a letter from Aunt Dete, intending to take Heidi to Frankfurt, which he destroys, acting as if it does not concern him.
Feb. 3, 1974, midnight
S1E6 - Whistle Louder
One day, in her attempts to learn how to be a goatherd, Heidi tries milking a goat and whistling, eventually succeeding.
Feb. 10, 1974, midnight
S1E7 - The Whisper of the Fir Trees
With high winds in the mountain pastures, Alm-Uncle decides not to let Heidi go to the mountains. Instead, she helps her grandfather make cheese. But Snowflake, a baby goat, comes to her anyway, leading her to unintentionally ruin the cheese.
Feb. 17, 1974, midnight
S1E8 - Where Is Pichi?
Pichi follows the seasonal birds, and Heidi finds it hard to calm down. Alm-Uncle takes her to collect chestnuts and grapes. Meanwhile, to make up for a previous quarrel, Peter captures a bird that looks like Pichi and gives it to Heidi. Heidi releases it and gives chestnuts and grapes to Peter to make up.
Feb. 24, 1974, midnight
S1E9 - The Snowy Alps
Winter arrives, bringing long hours indoors. Heidi arranges food under the cover of the three fir trees for herbivores and tries to befriend the animals.
March 3, 1974, midnight
S1E10 - To Grandmother's House
After the snowfall ceases, Heidi is taken by her grandfather on a sled to Peter's grandmother, as per her invitation. There, Heidi learns of the grandmother's blindness and cries. She asks her grandfather to repair Peter's dilapidated home so the blind grandmother can find comfort.
March 10, 1974, midnight
S1E11 - The Snowstorm
Hunters try to get the herbivores Heidi feeds but are stopped. Later, Heidi sends Alm-Uncle to rescue the hunters after they venture out again. After much worry, Grandpa returns with them safely.
March 17, 1974, midnight
S1E12 - Sounds of Spring
With spring arriving in the mountains, there are dangers of sudden avalanches. On returning from a sled race after giving Peter's grandmother a spring flower, they encounter an avalanche. Thanks to Alm-Uncle's quick action, they are saved instantly.
March 24, 1974, midnight
S1E13 - Return to the Pastures
With spring officially back, Peter and Heidi return to the meadows with their flock. Peter gets into a fight with another herder who accuses him of trying to steal his stranded goat. Joseph's intimidating presence scares the individual off.
March 31, 1974, midnight
S1E14 - Sad News
Heidi's favorite goat, Snowflake, is about to be sent to the slaughterhouse because it stopped giving milk. Heidi attempts to prevent this by gathering nutritional herbs from mountain crevices.
April 7, 1974, midnight
S1E15 - Snowflake
Mr. Strahl, the owner of Snowflake, is convinced not to slaughter the goat after Heidi demonstrates its increased milk yield.
April 14, 1974, midnight
S1E16 - The Village of Dorfli
Heidi visits Dorfli to check on Snowflake. On returning, she talks to Alm-Uncle about going to school, but he flatly refuses.
April 21, 1974, midnight
S1E17 - Two Guests
The local church pastor tries to convince Alm-Uncle to let Heidi attend school but is refused. Then Aunt Dete arrives, unwilling to accept no for an answer.
April 28, 1974, midnight
S1E18 - Separate Ways
After threatening legal action, Alm-Uncle angrily allows Heidi to go with Dete to Frankfurt, despite protests from Peter and her grandmother. Heidi goes, unaware that Dete lied about it being a day trip.
May 5, 1974, midnight
S1E19 - To Frankfurt
Through coaxing, forcing, and lying, Dete takes Heidi to Frankfurt, where she becomes the playmate of an invalid child, Clara. Upon arrival, she is introduced to the governess Rottenmeier, who is strict, and Dete leaves.
May 12, 1974, midnight
S1E20 - A New Life
After a sleepy dinner, Heidi’s life in Frankfurt begins. She is constantly nagged by Rottenmeier and disappointed when she sees that the window blinds do not show the mountains. She endures it to bring tobacco and white bread to her grandmother and grandfather.
May 19, 1974, midnight
S1E21 - I Want to Fly
During lessons and punishments, Heidi empathizes with Clara’s condition through her pet caged bird, which Clara also owns.
May 26, 1974, midnight
S1E22 - The Distant Alps
Heidi, avoiding Rottenmeier's gaze, explores the city but finds only a dreary urban landscape.
June 2, 1974, midnight
S1E23 - A Big Uproar
Heidi receives a kitten from the kind church tower maintainer and hides it in the attic with the help of the manservant Sebastian. Other kittens sent to her are promptly returned because Rottenmeier cannot handle them, along with a turtle that came from a street musician boy.
June 9, 1974, midnight
S1E24 - Meow Is Abandoned
Rottenmeier discovers the hidden kitten and throws it away. Heidi leaves, but Sebastian assures her that the kitten is safe at a friend's house.
June 16, 1974, midnight
S1E25 - The White Bread
On a routine inspection, Rottenmeier finds all the white bread Heidi stored for Peter’s grandmother and confiscates it. Heidi wails, but Clara consoles her by saying the bread was already molded and cheering her up with a fairy tale.
June 23, 1974, midnight
S1E26 - The Return of Mr. Sesemann
Mr. Sesemann returns to visit Clara and is impressed with Heidi’s companionship with her. He later informs Clara’s grandmother, which annoys Rottenmeier but delights Heidi.
June 30, 1974, midnight
S1E27 - Grandmother
Clara’s grandmother becomes an instant favorite of both girls and spends a fun-filled day with them. For once, Heidi does not think about the mountains.
July 7, 1974, midnight
S1E28 - Let's Go to the Forest
After seeing Heidi cry over a picture of the mountains, the grandmother takes both girls for a picnic in a state park, much to Rottenmeier’s chagrin.
July 14, 1974, midnight
S1E29 - Two Hearts
After a day at the park, Clara falls ill.
July 21, 1974, midnight
S1E30 - I Want to Catch the Sun
To cure Clara, Heidi returns to the park to gather sunshine, butterflies, and flowers, which improves her condition.
July 28, 1974, midnight
S1E31 - Goodbye, Grandmother
Grandmother leaves after a mock wedding party, returning Heidi to her dreary city life.
Aug. 4, 1974, midnight
S1E32 - A Stormy Night
Heidi is torn between wanting to leave her confined situation and not abandoning lonely Clara, when a nightly ghost appears in the Sesemann mansion.
Aug. 11, 1974, midnight
S1E33 - Ghost Commotion
Everyone is frightened by the ghost, but no one realizes it is Heidi sleepwalking, stressed and longing for the Alps. The doctor discovers this and convinces Mr. Sesemann and Clara, resolving the situation.
Aug. 18, 1974, midnight
S1E34 - To My Dear Mountains
Heidi returns to the Alps and is reunited with her grandfather, wearing the same clothes she had when she was five.
Aug. 25, 1974, midnight
S1E35 - The Starry Sky of the Alps
Heidi relives all the experiences she missed while in Frankfurt.
Sept. 1, 1974, midnight
S1E36 - And to the Pastures
Heidi spends an adventure-filled day with Peter and the goats, including discovering a new mountain-top lake.
Sept. 8, 1974, midnight
S1E37 - The Baby Goat
Heidi begins writing letters to Clara and reading hymn books to Peter’s grandmother. Alm-Uncle decides to repair a rundown house in Dorfli so Heidi can conveniently attend school in winter.
Sept. 15, 1974, midnight
S1E38 - In a New House
On the first day of winter school, Peter does not attend as he is running an errand for a Dorfli resident.
Sept. 22, 1974, midnight
S1E39 - Don't Give Up, Peter
During a sled race, Peter competes using his carpentry skills and finishes jointly in first place, splitting the prize.
Sept. 29, 1974, midnight
S1E40 - I Want to Go to the Alps
Clara insists on visiting the Alps to see Heidi. Mr. Sesemann arranges for a doctor to evaluate whether the Alps are suitable for Clara’s health.
Oct. 6, 1974, midnight
S1E41 - The Doctor's Promise
The doctor visits the Alps. Heidi shows him the mountains, and although he doubts the terrain is suitable for Clara, he is persuaded by her plea.
Oct. 13, 1974, midnight
S1E42 - Reunion With Clara
Heidi prepares the Dorfli winter home for Clara, who receives a warm welcome.
Oct. 20, 1974, midnight
S1E43 - Clara's Wish
Clara is enchanted by the mountainside and wishes to stay in Heidi’s hut. Her wish is granted, much to Rottenmeier’s annoyance.
Oct. 27, 1974, midnight
S1E44 - A Little Plan
After skipping lessons and enjoying the mountain soil, Clara asks Heidi for mountain flowers. Together, they plan a picnic on the mountain.
Nov. 3, 1974, midnight
S1E45 - Children of the Mountain
Peter tries to carry Clara up the mountain using his spare pants, but it is too strenuous for him, so he looks for alternatives.
Nov. 10, 1974, midnight
S1E46 - Clara's Happiness
Clara enjoys her days in the mountains with Heidi and Peter, braving a mountain shower and reading to Peter’s blind grandmother.
Nov. 17, 1974, midnight
S1E47 - Hello, Grandmother
Clara’s grandmother visits and immediately sends Rottenmeier away, enjoying time with Heidi and Clara.
Nov. 24, 1974, midnight
S1E48 - A Small Hope
Clara shows promising signs of standing up, though not fully consciously. Her grandmother takes her to Heidi’s lake to encourage her.
Dec. 1, 1974, midnight
S1E49 - A Promise
Clara practices standing with Heidi’s help, though she remains uncertain. During the farewell party of Clara’s grandmother, school friends join the celebration, motivating Clara.
Dec. 8, 1974, midnight
S1E50 - Try to Stand
Clara attempts to stand using handrails, encouraged by Heidi.
Dec. 15, 1974, midnight
S1E51 - Clara Walks
Clara starts walking properly, surprising her father, Mr. Sesemann.
Dec. 22, 1974, midnight
S1E52 - Until We Meet Again
Clara leaves for treatment at Bad Ragaz. Heidi wonders when they will meet again to enjoy the Alps together.
Dec. 29, 1974, midnight