Vox Machina journeys to Whitestone to confront the Briarwoods and help Percy reclaim his family home. As they travel, Scanlan studies Delilah Briarwood’s mysterious spell book to uncover clues. But the team’s first road trip is interrupted when the Briarwoods send horrific monsters to retrieve their missing book.

As Vox Machina discovers more about a revenge pact Percy made years ago, Keyleth tries to magically connect with the Sun Tree. She senses its pain as well as a dark force deep below the city of Whitestone. Feeling underappreciated, Scanlan volunteers to infiltrate Duke Vedmire's mansion as a distraction while Vox Machina attempts to rescue Percy's sister Cassandra.

Vox Machina battles the vicious Professor Anders and his unique magical abilities, while Delilah Briarwood uses magic to summon a demonic army to rise against our heroes. Meanwhile, Pike searches for a way to reconnect with her deity, even if it means risking her life.

Vox Machina has stopped the Briarwoods’ evil ritual, but at a heavy cost. As they flee the Ziggurat to save one of their own, Percy is eager to take revenge on their prisoner, Delilah Briarwood. When Vex implores him to let go of his vengeance, Percy must confront the darkness within himself.