Having drank of the River Styx, Zeus has been reborn. Now a child, with no memory of his existence, Hercules and Athena flee with him to protect him from the wrath of Hera. When she sends the harpies after the group, Athena diverts them and tells Hercules to get take Zeus to the Infinite Avengers Mansion, where he'll be safe from his wife.

But before he can get there, the pair are approached by Balder. A queen among the Dark Elves of Svartalfheim has broken the peace, and constructed engines of war. With Thor banished, the Norns have declared that Hercules is the only hope for the Nine Worlds.