When Maggie's parents die in a tragic accident, she moves to Ellicott City to live with her uncle, a recluse who has lost his faith in God. She befriends the clergy and staff of Saint Paul Parish, where she meets Kevin, a misguided teen.

The Hour of Mercy is a love story that climaxes during Hurricane Agnes, a storm that devastated much of the Eastern United States in 1972. This catastrophic event takes her on a journey that affects the people she meets and those she leaves behind.

The theme is one of faith that God is truly in control, even when life is falling apart, and His gift of mercy redeems all who open their arms to receive it. Those who meet Maggie learn one of the greatest truths: life is difficult for everyone, and we each have a cross to bear, but we are not meant to carry it alone.