W5's Sandie Rinaldo joins a group of Canadian high school students, chaperones, and Holocaust survivors on a journey from Toronto to Poland as they embark on an annual pilgrimage known as the March of the Living, an emotionally grueling tour of Nazi concentration camps. The tranquility of the notorious concentration camps Auschwitz, Birkenau, Treblinka, and Majdanek mask the terror that occurred in these vast, menacing places, synonymous with atrocities committed by the Nazis. W5's "IN THEIR FOOTSTEPS" charts the course of the tour group from Canada, as they set off on a somber journey of remembrance to places of stark brutality to honour the millions of victims who perished in these places, and celebrate the spirit of resilience. In this special, full-hour report, W5 takes viewers inside the remarkable stories of survivors, including 88-year-old Nate Leipciger, who was held captive in seven different camps in less than two years, losing more than two dozen family members in the Holocaust. W5 also speaks to Angela Orosz, who miraculously was born in secret inside the Birkenau concentration camp - weighing just over two pounds. Her mother, Vera Bein, was subjected to cruel medical experiments while imprisoned and survived on less than 400 calories a day during the pregnancy. Angela weighed little more than two pounds at birth and remarkably went undiscovered in the barracks until the camp was liberated a month later. She went on to live a long, healthy life in Canada.  W5 captures the life-changing experience among the students traveling - from the raw and devastating emotions they experience, to the hope that flourishes amidst the monuments and memorials - reminding a new generation that such atrocities must never be allowed to happen again.