When Zoey and Kiki, two irrepressible girls from another galaxy and world called Lumina become castaways in the quiet, Australian seaside town of Lightning Point after losing their spaceship, they recruit local girl Amber to keep them undercover. But the whole town is abuzz with the sightings of U.F.O.s, the girls soon realize that they may not be the first intergalactic visitors on planet Earth. When the time comes, can they say farewell to a world as wonderful and beautiful as their own home world Lumina?