A chief inspector in the anti-narcotics unit holds true to his beliefs as a police officer. He puts everything on the line to crack down on drugs and to bring drug traffickers to justice. How will our hero resolve this "bursting point" crisis?

In 1970s Hong Kong, the Independent Commission Against Corruption (ICAC) was formed to bring down the corruption syndicate led by British government officials. One of its top investigators is Senior Investigator Lau Kai-Yuen, who brought down countless corrupted officials. Just as he thought stability and prosperity are within reach, a new era of greed and riches takes him into a new battlefield of corruption.

Three years ago, drama teacher Lam Hiu Yeung (Karena Lam) lost her younger brother in a kidnapping case, headed by female inspector Ho Yuen Chun (Rene Liu). Three years later, she is now on the verge of another great loss: her husband is in the late stages of cancer, and options are running out. To take him overseas for medical treatment, she needs money, and a lot of it. Using what she learned from her brother's tragic incident, she calmly masterminds the kidnapping of a tycoon's son, a case that again falls into the laps of workaholic detective and divorced mother Yuen Chun. These two strong-minded women square off in a high-stakes battle of wits, but plans and composure melt away on both sides when they realize that Hiu Yeung has nabbed the wrong kid - Yuen Chun's son.

The background of "Hero" is set in 2020: a sudden disaster that disrupted everyone's lives. When society face unemployment when families fall apart, when lovers are separated, when death is approaching quietly, and when a peaceful life suddenly undergoes unexpected changes, how will women respond? What are the vital and irreplaceable roles that men play in women’s lives and growth? The three female directors Zhang Aijia, Li Shaohong and Chen Chong used their unique female perspectives to explore and show people's plights and struggles in family, career, and love in special times.