While competing with friends in the celebrated Multiplayer Olympics, a serious issue brings the competition to a screeching halt. The monks, who watch over the seed worlds beyond Xenos, bring news of a wave of glitches and corruption that will soon cause widespread disaster. The Defender has wreaked unthinkable havoc, but there is still a way to save the world as Phoenix knows it. With T.H.'s parents, the monks, and her magic necklace to guide her, Phoenix leads her friends on a dangerous adventure to repair the damage caused by the Defender and save the world. Her success depends on her ability to survive a crash course in world pollination as she risks everything for the future of Xenos.