The story follows a band of Blood Angels Space Marines as they face a dangerous and insidious foe.

A gym coach acquires incredible superpowers from a mysterious comet and becomes Captain Fantastic, one of the earth's greatest protectors. He works 'undercover' as a kindergarten teacher to raise a new generation of super-powered kids.

Rainbow Rangers takes place in the magical land of Kaleidoscopia and focuses on the adventures of seven 9-year-old girls—Rosie Redd, Bonnie Blueberry, Indigo Allfruit, Anna Banana, Mandarin Orange, Pepper Mintz, and Lavender Laviolette- who are all represented by the colors of the rainbow. Each use their own powers to help protect the citizens of their land, clean the planet, and make the world a better place.