Determined to find an answer, Jack and Michelle Townsend set out on a quest to find the original ending to the Gospel of Mark.

Following ancient clues, they head for Rome, but what starts out as a scholarly search turns violent as two separate groups strive to stop the Townsends, plunging their quiet research into chaos.

After a bomb destroys their office, the Townsends are pushed to the limits of their determination and commitment to God's will. Can faith in God's purposes endure in a swirl of conspiracy and espionage that brings the couple to the brink of death?