One hundred years had passed since Medeus was slain in Archanea. Once Medeus was resurrected he rebuilt his land of Dolhr, readying himself for an invasion of Archanea once again. After the attack from Dolhr, Marth was forced into exile on the island nation of Talys. His father, Cornelius, was killed battling Gharnef, an evil priest and a devout follower of Medeus; his elder sister Elice was taken hostage. He had also discovered that Altea's neighbor and ally Gra has betrayed the kingdom, due to Gharnef's manipulations and King Jiol's cowardice. With the help of the Altean knight Jagen, the Talysian Princess Caeda, and other characters, Marth embarks on a quest to defeat Medeus, reclaim the kingdom of Altea, and rescue his sister. Marth meets Nyna, the princess of Archanea-the most prominent kingdom—who gave him the country's national treasure, the Fire Emblem. Marth later obtains the Falchion sword, which was stolen from his father by Gharnef. He uses it to confront Medeus.