One autumn when the jungle leaves fall from the trees and the balloons from the balloon trees, Lucullus, the greedy white elephant, eats so many balloons that he begins to rise and fly into the sky.

There he meets Bolinor the helicopter crocodile, Bananias the banana bird, Fonfon the dusting bird, and Escalop and Sorolop the raquet chickens, and they all go together with their little gifts to the sun's birthday party.