Shortly after Kipp Brown and his teenage son, Mungo, arrive at the Amex stadium for their team's biggest-ever football game, Mungo disappears. A short while later Kipp receives a text with a ransom demand and a warning not to go to the police if he and his wife want to see their son alive again. But as a massive, covert manhunt for the boy and his kidnappers begins, Detective Superintendent Roy Grace starts to realize that not all is what it seems.