An intergalactic traveller from the planet called Bookala, of a race of the same name, lands in Angel Grove Park. His tiny spaceship is powered by a special diamond, which, if Lord Zedd can steal it, can be used to power the always-drained Serpentera permanetly. The Power Rangers get involved, beat the Weldo monster, and aid Bookala in escaping back into outer space. Zedd turns the "decoy toy Bookala" into an evil Bookala, which our heroes also destroy. In gratitude, the magical real Bookala makes it snow in Angel Grove.