In 1993,
NYPD officer and caving enthusiast Chris Nicola visited
Ukraine to explore the
Verteba and
Priest's Grotto caves, and found evidence that they had recently been inhabited by humans. After discovering that the caves were used by three Jewish families (Stermer, Dodyk, and Wexler), comprising 38 people, led by matriarch Esther Stermer (1888–1983), escaping
the Holocaust, he embarked on a decade-long quest to find survivors. The film features interviews with some of the 36 survivors and/or their descendants, now living mainly in
New York City and
Montreal. It includes a segment in which Tobias brings some of the survivors, the oldest of whom was a nonagenarian, back to the caves. ==Release==