Sara, already having the ability to communicate with ghosts, read minds, and see visions, is now burdened with the ability to know impossible things, like long lost secrets.
After a hurricane hits the New Jersey shore, Sara's schoolis having kids bussed in from the neighboring town, and the spirit of a sailor reaches out to Sara.
The ghost Johnny Boo and his friend Squiggle go to the moon, aided by some helpful stars, in order to get some moon ice cream--but first they will have to save the stars and ice cream from a moon monster.