Five teenagers brought together by the covert operations organization I/O to become the United States government's next generation of super-powered operatives: GEN¹³ Unwilling to be I/O's pawns, the teens escaped the orgnization's clutches with the help of renegade agent John Lynch, who soon became their mentor and friend. Now, in their greatest adventure, the young heroes must stop the operatives of I/O from gaining access to the demonic power of the Hellgate - and possibly from destroying the world as well!