Abby has a wonderful voice, and sings in the choir at Grace Faith Church. When God chooses Abby and her family as pawns in his wager with Satan, her life is turned upside down. Abby is banned from her beloved church and soon, she's hanging out with a new crew, drinking and getting high.
Abby runs into Randy Nelson, her older sister's ex. They begin dating, and soon Abby becomes pregnant and marries him. Unknown to Abby, the Nelsons are members of a New Age cult called the Brotherhood. When Abby finds out about her husband's involvement in the Brotherhood, and his many infidelities, the marriage turns sour.
For years, God's angels and Satan's demons wage war with Abby's soul. When Abby discovers RJ, her thirteen-year-old son has been attending Brotherhood initiation ceremonies, she joins forces with her old minister and together, they fight the good fight of faith and Abby shows Satan just how strong her faith really is.