What does it take to be a United Nations worker in some of the world's most complex and dangerous places? How are UN humanitarians, human rights advocates, prosecutors, development experts, climate leaders and peacekeepers improving our world? 
Stationed in all reaches of the world and witness to suffering and atrocities, how are they helping people and coping themselves?
 To find out, Melissa Fleming meets them.

Here you will discover extraordinary personal stories from people who devote their lives to helping others.