The Briarwoods' evil past connects with the present as Delilah reveals her pact with the Whispered One. In the bloody Whitestone streets, Vox Machina wages the fight of their lives against an undead horde. But just when all looks lost, the team gets help from an unexpected source.

After escaping from the black dragon Umbrasyl, Vox Machina is split up. Half of the party find themselves lost in another dimension, the mysterious Fey Realm. They encounter strange dangers as they seek to recover the next Vestige of Divergence. Meanwhile, the other half of the party searches for a way to heal their cursed teammate.

Thordak strikes back! The combined armies of Whitestone and Syngorn are in trouble as the dragon's ambush is sprung. Betrayed by Raishan and left with nowhere to run, Vox Machina scrambles to find a new plan before their allies are wiped out.