There is dissension within the ancient organization of Outriders. Ariana Sommers is one among an elite group of warriors of God known as Outriders called to protect and defend lives as directed by the Holy Spirit. When the mysterious disappearance of The Organization s leader Isaac splinters the outriders into two hostile sides, Ari finds herself the reluctant leader of The Old Guard faction. She is pitched headlong into a life and death struggle against her former friend Silas and the faction that now calls themselves The Tempest. Digging deep into her faith and into her own past to fulfill a prophecy and find forgiveness and restoration, Ari and her friends must travel the globe in order to find Isaac before The Tempest can reach him."