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!

Until her transformation into the strongest member of the group, Caitlin Fairchild was a student at an Ivy League university. Though she loves her GEN¹³ family, she finds herself at an emotional crossroads that causes her to question whether or not she wants to remain part of the team. But Caitlin's decision to lave GEN¹³ leaves the group fatally vulnerable to an enemy that has sworn to destroy GEN¹³ - one who has intimate knowledge of their strengths and weaknesses and finally has the weapon needed to achieve total vengeance. An all-new adventure by Sholly Fisch, writer for X-Men Legends and The Ultimate Hulk.