This TV series tells the legendary story of heroic figure Xie Yunting. In order to rescue his compatriots and deliver important intelligence, he stages a life-and-death race against time within 72 hours.

　　讲述了因共党叛徒被国民党俘获后，出卖共党内部机密，潜伏在国民党内部的共产党员，为拯救共产党进步人士，并将共党人士安全送出上海，与国民党周旋斗智斗勇的故事。