A chance encounter with Captain Black leads Melody Angel to uncover a plot by the Mysterons to devastate the world’s food supplies by contaminating them with a deadly new bacteria. While Destiny Symphony and Harmony pursue Black, Rhapsody is on the trail of the only man who may be able to destroy this new culture – but the Mysterons are one step ahead of her, and soon a new and even greater danger looms. As a wave of death and destruction begins sweeping across Canada all five Angels are deployed to combat the threat – but will their attempts to stop it only make things worse?