New York, 2016: Natalie Abbott offers help to hurting listeners on her popular radio program. But she struggles to connect with her own teenagers. New York, 1776: Mercy Howard joins the revolutionary spy ring to avenge her fiancé, Nathan Hale, who was hanged as a spy. But hiding her loyalties grows harder with the charming Major John Andre. Mercy’s journals comfort Natalie as both struggle with secrets and shame.