Look here, toad. I don't think I can take it anymore.
I think I'm going to run away...
Is that good to drink? I'm thirsty.
No-no, it's not. You mustn't drink from it .
Dear child, do not worry. We will return you to your home very soon.
Winnie talks to a toad that's in front of her house about how she wants to run away. While talking to the toad, a strange man in a yellow suit appears in front of her house and asks Winnie questions about a family that lives near the woods. Winnie's grandma comes out and asks Winnie who she's talking to. While the man asked questions about people who live around there, strange music from the woods starts playing.
Winnie decides to run away to the wood. In the wood, Winnie sees a boy drinking from a spring. Winnie introduces herself to him. His name was Jesse Tuck. When Winnie tries to drink the water, he blocks her way and tells her that the water isn't safe to drink. Winnie gets mad because she saw him drinking it earlier. Then, Jesse’s mother and older brother, Mae and Miles appear. Mae tells them to grab Winnie. So they did and ran.
After a while, the Tuck’s stopped to tell Winnie why they took her and their story about when they arrived to the woods years ago. 87 years ago, the Tucks arrived to the wood while looking for a new home. They were thirsty and needed a break. So they drank the spring water. Years after they drank the water, they haven't aged. They tell her the rest of their story and then continue on going to their cottage.
The family takes Winnie to their cottage to meet Tuck, Jesse father. Food was ready when they arrived. While eating, Winnie tells them she's homesick. So, Tuck took her to the pond and to have talk about life and death. Quickly, Miles ran out of the house and told them that their horse was stolen. It turns out, the man in the suit had stolen it and went to the Foster's home to make a proposal. If they gave him the wood, he'll return Winnie to them.
The man returned to the Tuck home and reveals his plan with the spring. He was going to sell the water, and make Winnie drink it. He blackmailed them. He told them that if they didn't tell him where the spring was, he would tell everyone their secret. So, Mae had thought the only choice was to hit him on the head. The constable arrived and arrested Mae. But, Winnie and the Tuck's helped her escape.
When the Tuck's left, Winnie decides not to drink the water. Instead, she gives it to the toad. 70 years later, the Tucks return to Treegap and ask a man at a diner about the wood. The man tells them that a big storm had knocked it down and tore up the ground. They went to check it out. When they arrived, they saw they houses, stores, and a cemetery. They all entered the cemetery, the wood was gone, and so was Winnie.