This is the true story of an undercover investigator's experiences infiltrating the multi-billion-dollar global sex industry. It is a story of triumph for the children and young teens released from a life of slavery and the rescuer who freed many hundreds of victims leading to the prosecution of dozens of perpetrators. And it is a story of haunting despair for those left behind in corrupt systems of law enforcement. It is the personal story of Daniel Walker, one man who followed a path of costly discipleship, agonizing failure and unlikely redemption. And it is a challenge to God's people to join in the battle that all might be freed.