When they are little girls, Cibi, Magda and Livia make a promise to their father – that they will stay together, no matter what. Years later, at just 15, Livia is ordered to Auschwitz by the Nazis. Cibi, only 19 herself, remembers their promise and follows Livia, determined to protect her sister, or die with her. Magda, aged 17, escapes capture for a time but eventually she too is transported to the death camp. In Auschwitz-Birkenau the three sisters are reunited and, remembering their father, they make a new promise, this time to each other. That they will survive.