Barbie knows that even the smallest person can make a difference in the world, so when she leads a group of young children on a tree planting expedition in a nature preserve, she makes sure that each child knows that his or her action is important and meaningful.
To illustrate her point, Barbie tells the kids the story of a young Twillerbee named Thumbelina who vowed to save her people and their world from destruction in spite of enormous odds.
When humans Evan and Vanessa decide to raze an extensive flower field to build a new factory, their spoiled daughter Makena demands a patch of the flowers be brought home in hopes of impressing her equally spoiled friend Violet.
Twillerbees Thumbelina, Janessa, and Chrysella, who live in the field with hundreds of other Twillerbees, are accidentally transported with the flowers. Before they can escape and return home, the three discover the plan to destroy their field.
Thumbelina resolves to stop the destruction of the fi! eld by appealing to Makena and her parents while Janessa and Chrysella return home with plans to sabotage the demolition equipment and delay groundbreaking.
Makena is initially uncooperative, but Thumbelina's heartfelt appeal and her genuine offer of friendship eventually persuade Makena to try to convince her parents to halt construction. Can one small girl and one tiny Twillerbee possibly save the Twillerbees and their habitat? Perhaps anything is possible if you believe.