“Vanguard” is a no-limits documentary series whose award-winning correspondents put themselves in extraordinary situations to immerse viewers in global issues that have a large social significance. Unlike sound-bite driven reporting, the show's correspondents, Adam Yamaguchi, Christof Putzel and Mariana van Zeller, serve as trusted guides who take viewers on in-depth real life adventures in pursuit of some of the world's most important stories. / (Source: Current TV)