Tinker Bell (Mae Whitman) is born from the first laugh of a baby, and is brought by the winds to Pixie Hollow (which is part of the island of Never Land). She learns that her talent is to be one of the tinkers, the fairies who make and fix things. Two other tinker fairies, Bobble (Rob Paulsen) and Clank (Jeff Bennett), teach her their craft, and tell her about the fairies who visit the mainland to bring each season. Tinker Bell is thrilled and cannot wait to go to the mainland for spring.
The nature-talent fairies are bringing to the mainland the season of leaves, hibernation, chilly breezes, and pumpkins: autumn. Meanwhile, Tinker Bell and dust-talent fairies like Terence are staying in Pixie Hollow. Tink is trying to make a "Pixie Dust Express" to help Terence and the others. But it fails just as she is called to meet Queen Clarion, Fairy Mary, and Redleaf, the Minister of Autumn.
Like the other fairies, Tinker Bell attends fairy camp on the mainland. When she attempts to go find some lost things, Vidia reveals information about a human house nearby, which arouses Tink's curiosity, prompting her to stray from camp, with Vidia following behind to watch over her. When she reaches the house, she is amazed by their "horseless carriage", which is actually a car. She takes the time to flitter around under the car, while Vidia tries to get her to leave. Eventually they do, but on their way back to camp, Tink and Vidia stumble upon a fairy-sized house made by Lizzy Griffiths, a human girl who wishes to meet a real fairy. Tink immediately heads in to investigate, despite Vidia's constant warnings. Tink claims it to be perfectly safe, so Vidia slams the door shut in an attempt to scare her but unintentionally locks Tink inside. When Lizzy begins to approach the house, Vidia tries to free Tink to no avail, resulting in Lizzy discovering Tink inside and taking her home. She prepares to show Tink to her father, Dr. Griffiths, a very busy and serious scientist, but upon seeing all the butterflies he has pinned in display for research, she decides to keep Tink a secret.
Rosetta is busy helping to set up flowers for the big night, when she meets a new garden fairy named Chloe, who drops a lump of dirt in front of her, accidentally getting her dirty and, because she's afraid of dirt, causing her to freak out until Silvermist douses her with a water droplet. Chloe announces she has been training for the Pixie Hollow Games and is excited to be competing. Even though the garden fairies have little hope of winning and haven't ever won, Chloe is confident that she and her partner can turn things around and end the losing streak. When it comes time for the team selection, Chloe has already volunteered and Rosetta is selected to be her partner.
At the beginning of winter, everyone prepares for the final season of the year. Out of curiosity, Tinker Bell wants to go to the Winter Woods. The tinker fairies make snowflake baskets which are delivered by snowy owls. Later that day, she helps Fawn take the animals to the Woods to Hibernation. While Fawn is busy, Tink ignores Fawn’s previous reminder that warm fairies cannot cross and crosses the border, and her wings start to glow and sparkle. Seeing this, Tink is convinced that she is meant to explore the Woods. But Fawn warns her that her wings are freezing and rushes her to the fairy hospital. After being examined, she remains curious about her wings. Tink then flies off to the Book Nook, where she finds a book on ''Wingology'', but finds the page on "Sparkling Wings" chewed up by a bookworm. A reading fairy tells her that the Keeper, the author who lives in the Winter Woods, might be able to help her.
Zarina (Christina Hendricks), a very smart and inquisitive pixie dust-keeper fairy, is amazed by the magic behind pixie dust and is determined to find out all that it is capable of. She secretly experiments with some blue pixie dust, creating pink pixie dust; making things grow wildly out of control; which causes an accident in Pixie Hollow. So her supervisor Fairy Gary prohibits her from being a dust-keeper or working with pixie dust in any capacity. In sorrow, Zarina takes her experiments and runs away from Pixie Hollow.
When the compassionate animal-fairy, Fawn, befriends the sleepy furry giant called the NeverBeast, persuading Queen Clarion and the vigilant Scout Fairies of its kindness is easier said than done. Is the peaceful Pixie Hollow in danger?