In an ordinary garden full of flowers and plants, little Jack and Mr. Gnome live above the ground, while Yvonne the mole, the Field Mouse family, Paulie the earthworm and Colette the ant live below the ground. Everybody is happy in the garden. Until one day, a new seed arrives, which soon sprouts into a plant. As the plant begins to grow (and grow, and grow), its stalk and leaves get in the way of those aboveground, and its roots disrupt the homes...