Plot synopsis: From December 1941 to August 1945, Hong Kong experienced the darkest years in history. Those 3 years and 8 months have become the collective memory of the nightmare of Hong Kong people... This war in Hong Kong is An important part of the Eastern battlefield during World War II is a history that should not be forgotten, a dark period of sad history... The TV series Qiu Chan is a youth spy drama based on this history, It tells the passionate story of the patriotic young Ye Chong and other underground party comrades fighting for the victory of the War of Resistance in those isolated island years.