Cassidy Edgemont has been dead for four years. At least, that is what the world has been led to believe. After becoming unwittingly entangled in a group called the Coalition, known for using fake news to generate political unrest in the United States, Cas was offered a devastating choice: stage her own death and join her rescuers, the guardians, or risk the wrath of the organization she betrayed. She chose death.

As an invisible government operative, Cas has been living in Paris with no complications—until her family pays an unexpected visit to the European city, changing everything. They think Cas is dead, and she has to keep it that way. But when a bomb is detonated nearby and fake news incites riots in the city, Cas recognizes the mark of the Coalition.

Donovan, a fellow guardian, is summoned to join her in Paris to attempt to untangle the intricate web linking Cas's past with the recent bombings. But as the threat level escalates, Cas must again make an impossible decision: face possible exposure to her family in her race to uncover the truth or risk the loss of innocent lives.