When a miscommunication brings a girl to Green Gables instead of a boy, Marilla and Matthew are faced with a life-changing decision.

Sent away from Green Gables after Marilla forced her to confess to taking her brooch, Anne makes the long journey back to the Nova Scotia orphanage unsure and alone. Little does she know that Marilla found the missing brooch and Matthew is racing to find her and bring her home. It’s a harrowing journey for them both. Meanwhile, waiting at Green Gables with no way of knowing why Matthew hasn’t returned with Anne, Marilla is consumed with guilt and worry. She’s only somewhat comforted by the company of her friend Rachel Lynde and young Jerry’s presence at the farm. After Anne returns, her joy is quickly muted when it seems Marilla isn’t happy to have her home after all. Emotions run high when Anne learns what it is to really belong.

Although she’s an avid reader and bright girl, Anne hasn’t had experience with school, and is more than excited to embark on her new adventure. It doesn’t take long however for her to misstep. Diana does her best to pave the way for smooth introductions, and Gilbert steps in when trouble brews, but Anne’s unique personality and innocent sharing of her life experience quickly leads many of Avonlea’s students and townspeople to question the Cuthberts’ choice in adopting an orphan. Surprised by an invitation to join the Progressive Mothers’ Sewing Circle, Marilla’s eyes are opened to some forward thinking views. But no sooner than she is welcomed, she too finds herself rejected. Anne, tormented by her embarrassing experiences at school, promises never to return.

Anne refuses to go to school. Confused and teetering on the brink of instability having been ostracized by her peers, she finds refuge in her imagination and an abandoned hunting shed she’s turned into a fort and makeshift school of her own. Marilla is at a loss and seeks the advice of the minister to disastrous effect. In Avonlea, the Gillis house burns in the middle of the night and the whole town turns out to help fight the blaze. Anne takes action and acquits herself well, making an inroad with the community, but she is still rejected by Ruby Gillis. Against her will, Ruby must stay with the Cuthberts while her house is being repaired. Anne’s compassionate and generous nature eventually wins Ruby over, but Anne faces the big decision of whether or not to brave school once again, or isolate herself at home with a future lacking in imagination and possibilities.

Anne must deal with the inevitability of (unwanted) womanhood when she gets her first period. In recognition of this uncomfortable milestone, Matthew tries to soothe and bolster Anne by purchasing her a fashionable dress at an intimidating dress shop in Carmody. Here he finds himself completely outside his comfort zone, and face to face with his high school crush, a woman he hasn’t seen in decades. Marilla also tries to ease Anne’s angst, suggesting Anne host Diana for a “grown-up” tea, while she visits Rachel Lynde. But when the girls mistakenly drink currant wine instead of cordial, it’s more memorable than anyone could have imagined.

With most of Avonlea’s adults, including the Barrys, in Charlottetown to hear the Premier speak, a desperate Diana calls on Anne for help when her little sister becomes deathly ill in the middle of the night. Anne employs her many years of experience tending to children to save Minnie May’s life. Grieving the loss of her longtime companion, Diana’s elderly Aunt Josephine, is staying with the Barrys and bears witness to Anne’s remarkable skills; she grows fond of the girl. Upon her return, a grateful Mrs. Barry lifts the ban on Anne’s friendship with Diana. At the Blythe farm Gilbert’s father passes away, leaving Gilbert an orphan and facing an unknown future. John Blythe’s death affects not only Gilbert but Marilla too, as we learn of the young love the two once shared. In town after the funeral Matthew receives unsettling news.