Marth, prince of Altea and descendant of the warrior Anri, is driven into exile when the neighboring kingdom of Dolhr invades. His father is killed. His sister Ellis is taken hostage by the evil priest Gharnef. With the knight Jagen, the princess Caeda, and a growing alliance behind him, Marth pursues two objectives: recover the sacred sword Falchion and the Fire Emblem required to wield it, and face Gharnef and the resurrected shadow dragon Medeus to win his kingdom back and free his sister.