Floating into the air with an enormous gum bubble, Alvin lands in a strange world where everything is gray. The trees, the flowers, the dirt, the sky, the animals, and even the people are all missing their color.

Confronted with the mystery of the missing color, Alvin teams up with some unexpected friends to battle man-eating plants, outsmart the bumbling Crimson Guards, cross the Sugar Desert, overcome the two-headed dragon, and find the color-stealing goblins to restore color to the kingdom.