She's missing - but does she want to be found? It is now three years since Detective Superintendent Greg Woods retired, and his life has been consumed with the desperate search for his former Detective Sergeant, Maria Barnes. This chaotic, and so far unsuccessful quest, has taken its toll on his physical and mental wellbeing. However, he finally receives a knock at the door with what he considers to be his most promising lead. He teams up with a young, spirited and extremely competent hacker, who also holds a vested interest in finding Barnes and his old adversary Faulkner-Brown. What they discover sends shockwaves around the globe and threatens international security. With Woods' health dramatically failing he knows this is his final chance, success or failure, his last hurrah!