A lone renegade prowling the streets, Dark Elf rogue Lazareth is arrested and thrown into the Imperial City prisons. With the empire ready to crumble, the gates of Oblivion open and demons march upon the land. Emperor Uriel Septim and his guardians, the Blades, venture into Lazareth's prison cell, to make use of a secret escape tunnel. But dark on the Emperor's trail lurks the Mythic Dawn, a cult of assassins who have already murdered the Emperor's heirs. Only the Dragonborn, in whose veins flow the Septim blood, can relight the Dragonfires in the Temple of the One and reinforce the barriers that protect the Land of Cyrodiil. With his dying breath, the Emperor entreats Lazareth, the only one who mysteriously can walk into the demonic world of Oblivion, to destroy the Oblivion portals, find the lost heir to the Septim throne and unravel the sinister plot that threatens to destroy all of Tamriel.