Franz Maurer is released after 25 years in prison and finds a completely changed Poland.

本片根据波兰著名同名小说改编，讲述了二战期间，华沙被纳粹德国军队占领，波兰童子军的年轻人们与德国占领者进行英勇斗争的故事。 　　Based on a well-known Polish novel with the same title the movie re-tells a true life story of a group of scouts called ''Szare Szeregi'' (Gray Ranks) during the Nazi occupation of Warsaw and the liberation of one of its members (imprisoned and tortured by the Germans) through a maverick military action in board daylight right under the enemy's nose known ''Action at the Arsenal'' which was the biggest single feat of the sort undertaken by a youth resistance organisation in all of occupied Europe during WWII.

影片根据真实历史事件改编，灵感来自戈尔斯基的人生经历，少年时代生活环境艰难，酗酒，吸毒，成长过程中不乏对社会体系的抗争和对自身的挑战，最终通过艰苦奋斗，从一名毒瘾患者成为了世界铁人三项冠军。