Time Frame: 1908-1909
Felix lashes out against his father and rejects the notion of becoming a farmer. Hetty turns 50, but the celebration is soured when her writing contract is cancelled and she must endure a risky operation. A visiting politician offers Alec an opportunity to run for office, but Alec questions the politician's shady dealings. Sara realizes that much of Davey's troublesome behavior is caused by his inability to read. Jasper and Olivia purchase the cannery and apply modern ideas to impove efficiency. Cecily falls ill with tuberculosis and Janet must make a difficult decision whether to send her to a sanitarium.
The King family plan a surprise party to celebrate Hetty's 50th birthday. The birthday plans go astray when Hetty falls deathly ill and must require surgery.
Hetty purchases the cannery to prevent H.B. Dunn from converting it into a distillery. Jasper and Olivia are determined to run the cannery but must overcome their own financial difficulties.
Alec considers making drifter Caleb Stokes a permanent hired hand, but problems arise when a traveling salesman reveals the stranger's true identity.
Felix becomes interested in the politician's daughter Adeline, but becomes suspicious of her when money starts disappearing from the hotel.
Janet wins the lead role in the regional drama competition, but when a famous actress visits Avonlea, Hetty gives the lead role to the actress.
The King family are devastated when Cecily contracts tuberculosis. Alec and Janet must make a painful decision on whether to send Cecily to a sanitarium.
Olivia seeks out Jasper's cousin, businessman Jeremiah Dale, who arranges investments to mass produce a new material Jasper created.
The new reverend's son becomes interested in Sara and introduces her to rag time music. Sara deceives Hetty and goes to an Acadian celebration.