The year was 1941, and Nazi Germany was bombing Poland. Celia Kassow, a young Jewish girl, knew she was in danger of being seized by the Nazis, so she ran to seek shelter at a Polish classmate's house. The classmate's response?

"Get away from here, you dirty Jew."

Celia and her family, like all the Jewish families in their town, were then imprisoned in a Nazi ghetto, facing daily starvation and torture. Most of Celia's family was murdered there, but a different Polish classmate of Celia's, a boy who had a crush on her, helped Celia escape to his family's farm, and eventually, into the woods to join the Soviet partisans.

The partisans were resistance fighters who gathered in secret during WWII to fight back against the Axis powers by attacking German garrisons and blowing up trains. When Celia joined them, the other partisans -- mostly young men -- wanted to put her on kitchen duty, but Celia refused and asked to be put on patrol. She was given a horse, ammunition, and an assignment.

Celia survived the war fighting with the partisans. After the war, she would go on to get married, have children, and immigrate to the United States, where she lived out her days assisting other immigrants and raising her family.

Her true story, based on first-person testimony and vetted by Celia's son, is one of incredible bravery and grit in the face of unimaginable evil.