A young boy is recruited by his imaginary friends Sharkboy and Lavagirl to help save their planet.

A young boy's discovery of a colorful, wish-granting rock causes chaos in the suburban town of Black Falls when jealous kids and scheming adults alike set out to get their hands on it.

After an experimental bio-weapon is released, turning thousands into zombie-like creatures, it's up to a rag-tag group of survivors to stop the infected and those behind its release.