With the passage of a comet, a strange green dust descended on the world. After exhaustive study, scientists concluded there was nothing to be alarmed about, as the dust had no effect on terrestrial beings. But they were wrong. In fact, the dust had awakened small plants and fungi to full consciousness. Quickly they began forming alliances and building tribes and nations — and now that nation building has erupted into full-blown war. In the dark of night, while most of the world sleeps, the Mushroom Men are at their most active, carrying out their minuscule struggle away from watchful eyes. What will be the outcome when tiny toadstools unleash their wrath against their fellow mushrooms and other enemies of diminutive size?