Spring begins and everyone on Rainbowland prepares for it. Strangely winter hasn't gone away on Earth. A robotic horse On-X comes to Rainbow with a message from a legendary sprite, Orin, to save the universe. Rainbow and Starlite go to the planet Spectra, which is the light of the universe, to find Orin. There they meet a boy known as Krys. They find out a evil Princess is trying to capture Spectra by having a net built to pull it away for her own diamond collection.
The blocking of the planet Spectra has caused Earth to be covered in snow and Rainbow's powers not to work. Krys rides On-X and helps Rainbow and Starlite stop the Princess from taking Spectra away. During all this, Murky and Lurky go after Rainbow on their own homemade spaceship bumbling in their own comedic way.moreless