[gunfire] joe wexler's great-grandfather and his grandmother's brother who was still a child were shot. >> we are here for their memory. for my grandfather. we were in there with heavy hearts, to say the least. >> the next morning, the group visits their grandfather's hometown. >> when he was there, there was no help from the locals at the time. what we have been told by chris is people in their older age want to cleanse their souls, t's so to speak, and get things off their chest. >> that may be true of the older people. most of the younger residents do not want to be reminded of the betrayal. we often hear, "i do not know." only this person, a child back then, can remember. >> jewish neighbors used to live in this house. over there, is a house that jews used to live in. >> later that afternoon, the group enters the priests grotto. they are spending the night here, 70 years after their grandfather left for the last time produced by the modern equipment, they find the darkness threatening and the mud repulsive. chris is here for the 19th time and is still amazed they survived. >> the q