Between the Earth and Heaven flows a sea without a shore. Faith Avalon, a junior at Zevon High, has no idea that her English assignment is about to make her a coffee-craving mariner on its otherworldly waves. The new kid, Tommy Connor, and her old friend Roy Belmont, the martial arts prodigy who studies with her father, are also caught in the riptide as messengers from the higher realms come sailing into town. And when all three of them begin to manifest strange powers, it only puts them in greater danger from a rising demon-cult.
After Tommy and Roy start to bond by way of a cataclysmic fist fight and car chase, the FBI becomes involved—as does a purple-skinned princess from the land of the Elves.