German police claim to have a major breakthrough in the Madeleine McCann case. Two investigative journalists examine the background of this new suspect.

Current suspect Christian B. moves back to Germany, where he is accused of drug crimes and producing child pornography. In Portugal, the Madeleine McCann case is crumbling, and a key investigator is terminated.

Suspect Christian B. evades his prison sentence for child pornography and returns to Portugal, where he's arrested for allegedly exposing himself to children. In Germany, police hope they have sufficient evidence to charge him in Madeleine's death.