 From the executive producer of CSI and Without a Trace, this ensemble crime drama uncovers the FBI s best kept secret: the Y Unit. Society is breeding a new class of young criminals and it will take an elite division staffed with the finest young agents to infiltrate and apprehend them. The Y Unit requires a special kind of operative to succeed - much less survive. Born with a genetic defect, Gaia, 21, lacks the basic instinct her partners Ryan and Harmony must fight to control: fear. Whether Gaia s handicap is an important asset or a deadly liability for the unit remains to be seen...