when they were on her heels, she escaped by hiking 50 hours through the pyrenees in espadrilles, making spain. >> good morning, madame. >> good morning. >> reporter: it was her life that inspired the hollywood movie, "charlotte gray." telling how the british taught her to use firearms and her muscles to kill. a documentary tells what happened next. they parachuted her back into france. >> there they were. with my cosaboteur, dancing about the sky avoiding the german anti-aircraft guns. i was hardly hollywood's idea of a glamorous spy. >> reporter: she joined the french underground. requiring only lipstick, stockings and the opportunity to pick off unsuspecting nazis. >> in my opinion, the only good german was a dead one. and the deader the better. i rejoiced in the fact that i killed them. i'm sorry i couldn't kill more. that, ladies and gentlemen, is why i'm here. >> reporter: the one person she could not save is her french husband. he was tortured and killed because he wouldn't lead the nazis to her. >> some people have said to me, how did you survive? you must remember when you're th