This in-depth study explores the most important issue for every person - eternal salvation. In Acts 16, the Philippian jailer asked the Apostle Paul a most important question, 'what must I do to be saved?' How is a person saved? As we discover in this study, God's greatest gift to mankind is also the only solution to mankind's greatest problem. What is this gift, and how are we to respond? We explore these questions and more in this fourteen-part study.