The story begins as Johnny Garland, a young 16 year-old detective who lost his father, sister, and some of his memories in an accident, accepts an investigation to track down a criminal suspect who has jumped bail. As he closes in on the suspect, Johnny witnesses a supernatural occurrence-a huge monster appears from a green light known as a Window and swallows up the criminal. Apparently, a series of horrific incidents similar to this have been plaguing cities across the nation. Johnny's female counterpart is 21 year-old bounty hunter Shania, a Native American who is searching for these mysterious Windows, determined to close them using her spiritual powers. Together, they travel across North and South America and are joined by a colorful cast of characters.