Over the last two decades, the Democratic Republic of the Congo has seen more than 5 million conflict-related deaths, multiple regime changes and the wholesale impoverishment of its people. Although this ongoing conflict is the world's bloodiest since WWII, little is known in the West about the players or stakes involved. This look into Africa's longest continuing conflict follows four characters -- a whistleblower, a patriotic military commander, a mineral dealer and a displaced tailor.