Jack and Grandpa Ju: Where are all the colors?

Something strange is happening to the world. Everything turn colorless except for Jack! Where are all the colors? How come Jack is the only one with colors? Did he secretly hide everyone else’s? But look, Mr. Hippo is dancing so joyfully! How can he be so happy in this colorless world? Can he be the one that stole all the colors? Jack and his friends are in a quest to find the thief and restore the colors. Will they succeed? Can they bring back the disappeared colors?