Kitty Hart Moxon was only fifteen years old when she was imprisoned in German death camp Auschwitz-Berkenau; seventy years later, she returns to the camp, taking with her two teenage girls the same age as she was when she first passed through the camp's gates. Kitty and her mother were sent to the camp together; her family was split up when the Germans invaded Poland at the beginning of World War One; her older brother joined the Russian army and fought against the Germans, dying in the Battle of Stalingrad. Kitty's mother had a friend who was a priest and he managed to get false papers for mother and daughter that would enable them to leave Nazi occupied Poland, but someone suspected that they were Jewish and turned them in to the authorities.
During the film, Kitty explains how she and her mother managed to survive the camp when so many did not. Kitty sought out the most disgusting jobs available, and as one of the cleaners charged with emptying out the latrines, she was not selected for death; the job was both unpopular and necessary and offered a degree of protection. As the Germans began to lose ground in the war, they also began to move their prisoners in an effort to hide the evidence of the implementation of their "final solution". Both Kitty and her mother were moved to several other camps over the course of a year, until they were liberated in 1945. Thirty members of their family, including Kitty's father and grandparents, had been killed.
After liberation, Kitty and her mother moved to England, where she later married and dedicated her life to raising awareness of the Holocaust and making sure that despite the passing of time, nobody forgets the events that happened in these camps during Adolf Hitler's regime.
The documentary is narrated by Kelsey Grammer; director Steve Purcell did not typically make historical or political documentaries, having started his career as a music videographer, before directing the Olsen twins in two of their feature length movies.