Following the Consulate's sudden closure of the Inventor's Fair, seizure of inventions, and arrest of many of the inventors themselves, the plane of Kaladesh is thrown into turmoil. Opposed to the increasing security and surveillance brought down by the Consulate, Pia Nalaar leads a revolt of aether pirates, essence-drainers, and weapon smiths. These rebels are joined in their quest for freedom by Ajani Goldmane and the rest of the Gatewatch, while they search for Nicol Bolas' servant, Tezzeret.