Kasia Wappa lives by Poland’s national park where a humanitarian crisis is unfolding on a scale not seen since World War 2. She is part of a network trying to save emaciated Middle Eastern immigrants who have been emerging from the wilderness since September. Most had spent days without food or water and were suffering from hypothermia and exhaustion. Some were sick from drinking swamp water. Kasia began by donating warm clothes, and now helps rescue parties retrieve lost and starving people from the woods. But the flow of migrants has increased, and she warns that many probably never make it. Ten deaths have been confirmed, and they have rescued many on the verge of dying. The Polish government has built a three-kilometre deep security cordon the length of its Belarus border to curb illegal immigration. All reporters are banned, creating a media blackout to hide the scale of the crisis. Rescuers now behave like insurgents, operating at night and evading police patrols.