"CIA operative Renee Niezen has heard tales of the guardians, though she's never really believed in their existence--until she is approached by Charlotte, an old friend who desperately needs her help to stop the systematic destruction of the guardian program. Renee accepts the plea for assistance, but not everyone is thrilled to have her on the team. Kade--one of the last guardians standing--is unimpressed with Renee's qualifications and turns instead...