This program follows downed American P-47 pilot Bill Grosvenor as he reunites with members of the Belgian Resistance, who waged a secret war against Hitler through their efforts to harbor and repatriate Grosvenor and other Allied airmen who were stranded within their borders. After more than 60 years of silence, Resistance fighters explore the motivations - ethical, spiritual and ideological - that propel one stranger to help another despite the risk to his or her life and everything he or she holds dear.