1939年繁昌保卫战，新四军排长朱振率队护送握有日军南京暴行证据与作战计划的记者陆瑛。遭日军围追堵截，队员接连牺牲，历经雪原伏击、山洞激战等生死考验，最终朱振殉国，陆瑛成功送证，助新四军获胜，日军罪行曝光。
Anna, hoping to escape from the disturbing past and find peace, escapes to a secluded mountain chalet. But the old life catches up with her even here. The house is bugged, which means Anna will have to return to her former life as an intelligence agent.
