Heather Grahl, a young Washington, D.C. lawyer, receives a call one morning bearing devastating news: police in the Bahamas discovered her sister's decapitated body. With no apparent suspects or motive, the authorities offer little help in solving the crime. Determined to find her sister's killers, Heather sacrifices her career and risks her life pursuing the murderers. Through her investigation, she uncovers evidence linking the Saudi Arabian Ambassador to the U.S. to the gruesome killing and learns of a shocking Saudi conspiracy against the United States that her sister died trying to expose. Together with a mysterious ally, Heather races to reveal the deadly Saudi conspiracy before she shares her sister's fate.