The ragtag group of adventurers known as Vox Machina are commissioned by Sovereign Uriel to find out who (or what) is decimating villages in the outskirts of Emon.

After ruining Sovereign Uriel’s diplomatic dinner, Vox Machina is confined to their Keep under house arrest. While they stave off boredom, Keyleth convinces Percy to open up about his dark history and Pike fears she has lost her connection to her deity. Meanwhile, a looming new threat is on its way to confront Vox Machina.

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.

After Percy confronts his old nemesis, Dr. Anna Ripley, a tenuous partnership is struck. Despite Percy’s protests that she can’t be trusted, Vox Machina brings Ripley along. She leads them through the traps under the castle, but soon the team is double-crossed by one of their own.

Vox Machina's victorious return home to Emon is cut short by the arrival of ancient dragons, the Chroma Conclave. Despite Vox Machina's best efforts, the dragons lay waste to the city, forcing the team to find a way to escape.

In a desperate bid to save a team member's life, Vax strikes a fateful deal with the Matron of Ravens, offering his life in exchange. As Vox Machina battles their way out of the sunken temple, Vax wonders what he's just signed up for.

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.

Despite his weakened state, Grog confronts his uncle, Kevdak, in a fight to the death. The battle is intense, with Grog taking a beating at the hands of his uncle’s Titanstone Knuckles, another Vestige of Divergence. As Grog is about to fall, the rest of Vox Machina arrives, just in time to join the fray.