Rainbow Rabbit wakes up one morning to find his colourful patches gone, leaving him pure white from head to toe. Seeking a solution, he turns to his Great Uncle Corduroy Rabbit, who takes him to the wise Belvedere Owl. To receive Belvedere's help, Rainbow must reveal a secret he's been keeping from Corduroy, risking hurting his uncle's feelings.
Upon hearing Rainbow's confession, Belvedere sends him on a quest to a bleak, cold land in the North Pole to find what he has lost. With no guarantee of success, Rainbow arrives in the snowy settlement of Aurora B., unsure of where to turn. Following his instincts, he encounters fascinating characters along the way, including a sweet Polar Bear cub named Velvet, whom he rescues. He also helps a Wolf gain confidence and assists a Badger family torn apart by harsh words.
As Rainbow navigates this unfamiliar landscape and lends a helping hand to those in need, he wonders if his efforts will be rewarded. Join him on this enchanting journey to find out if he can regain his lost colours.