"I'll do anything--I'll even preach!" As a boy, Dave cut a deal with God to save his life. Decades later, Dave and his friends are on his final street-preaching trip. "Jesus came for all, so we should go to all!" With that attitude, Dave fights spiritual resistance as he and his young family endeavor to leave the life they've known and join a team of missionaries stationed in an increasingly militant Islamic country. "God's calling is clear," Dave's...