kathy kaiser hides her reaction.sn't want to make the man uncomfortable. >> hi there, are you guys full? we just found a man who's really freezing. he wet and soiled himself. he absolutely needs a shower and clean clothes. i can't leave him outside. he'll freeze. >> the winter months are especially dangerous for people who live on the streets. >> whenever i hear the word "cold," i immediately think of the coldest days of the month. when the cold is life-threatening. >> she and her colleague drive the berlin "cold bus" through the streets at night, offering help, a sleeping bag or a hot cup of tea to people in need. they're bringing this man to a shelter, so he needs a covid rapid-test first. there's a hotline where passers-by can call the "cold bus" when they see someone in need. but all too often, they're ignored. >> most people just have blinders on. so these people just fall through the cracks. >> though they've been doing this work for years, this man's plight still moves them deeply. [crying] >> it's good we wer