One day, Duncan is happily coloring with his crayons when a stack of postcards arrives in the mail from his former crayons, each of which has run away or been left behind, and all of which want to come home.

"I'm not sure what it is about this kid Duncan, but his crayons sure are a colorful bunch of characters! Having soothed the hurt feelings of one group who threatened to quit, Duncan now faces a whole new group of crayons asking to be rescued. From Maroon Crayon, who was lost beneath the sofa cushions and then broken in two after Dad sat on him; to poor Turquoise, whose head is now stuck to one of Duncan's stinky socks after they both ended up in the...

Los crayones que Duncan ha perdido, olvidado en alg?n lugar durante las vacaciones, abandonado en el patio al calor del sol, tirado en el piso al alcance de su perro o que ha dejado en su bolsillo y han llegado a la lavadora, le escriben cartas para exigirle que los rescate de los apuros en los que se encuentran. Duncan se pone triste por haberlos abandonado y de inmediato pone manos a la obra para recuperarlos a todos y compensar el tiempo perdido....