The magical barrier sealing off Lina Inverse's home island is destroyed, and kingdoms across the world suddenly gain access to it. A golden dragon priestess named Filia ul Copt turns up to recruit Lina and her companions Zelgadis Graywords, Gourry Gabriev, and Amelia Wil Tesla Saillune for a mission tied to an unsettling prophecy. Filia and Lina spend the season needling each other as much as working together. This third TV season follows Slayers Next and was written directly for animation rather than adapted from the original novels.