After the battle with Raven's Army, the Clans lived in peace again, but a new threat hang over the four Clans. Meanwhile with the Dark Forest and StarClan getting themselves on good terms with each other, but each passing moment, the threat grows strong. They watched the Clans for so many moons, only is to save the Clans is to seek the answer within the heart of the Clans. But only ShadowClan can save the Clans from the raising new threat open the Clans. Meanwhile in ShadowClan, Heatherstar and Lilyfang gave birth to six kits, who were destined to save the Clans from the new threat. "In darkest night, only the six can clear the sky, and only they can bring peace back to the Clans once more."