After the events of one, the people that knew the contestants are interrogated about what they did when their friends disappear with no trace in sight.
For over thirty years, parts of Sweden lived in fear of a man who came to be known as the Dawn Pyroman. The police suspect him of having started over a hundred fires.
FRONTLINE reveals the dramatic inside story of how the U.S. government came to monitor and collect the communications of millions of people around the world, and the lengths they went to as they tried to hide this massive surveillance program from the public. The series is gripping viewing for those who want to understand the context of the Snowden affair—and what it means for all Americans.