Hong Kong is the safest city in Asia and a world-renowned international financial center. Its four core values are "finance, real estate, education, and judiciary," symbolizing the supreme glory of this international metropolis. Mo Yun, the Deputy Commissioner of Police in Hong Kong, has cracked ten major unsolved cases in just three years, earning him the title of a bona fide detective in Hong Kong. This time, he is about to face a challenge from a terrorist organization named "FREE," which aims to sanction Hong Kong's four core values. In a matter of days, Hong Kong's largest financial institution, the Zhou Group, experiences a sudden stock market crash, with the chairman arrested and the Hong Kong economy plummeting by more than 20%; overnight, all ten renowned real estate developers mysteriously disappear, causing property prices to half; the most prestigious century-old school in Hong Kong is bombed into ruins, leading to a citywide school closure. Their title of the safest city in Asia is utterly lost! A final showdown involving the lives and fortunes of Hong Kong's seven million residents has finally begun....

In a mysterious forest in Thailand, many suicidal youths disappear and rescue teams can not find the way out even with compass. The ambitious reporter May is making sensationalist journalism exploring the deaths in the forest. Her boyfriend and botanist Shun Shu-hoi is developing a means of communication with plants. Meanwhile, Detective C. C. Ha is investigating the rape and death of a woman and the main suspect is Patrick Wong....

In the early years of the Republic of China, the corrupt Qing government is overthrown by the revolution, and the trend of democratic progress rapidly sweeps across the entire land. However, aside from the chaos of the era, the underdevelopment of the people's wisdom, ignorance, and feudal superstition are still rampant throughout China. The son of the police officer Wang Zhizhang dies due to opium and he disdains the old society for the widespread crime and feudal ideology that poison the people’s minds. Hence, he disguises himself as a Taoist and infiltrates the local businessman Mr. Chen's house to investigate the opium smuggling case....

Suffering from pancreatic cancer brings a blow to Lu Hui and her boyfriend Enming. Lu Hui’s younger sister is criticized by teacher due to reading ghost stories at school. Lu Hui loses her temper in the face of her ignorant sister. Enming comforts Lu Hui while coping with heavy work. After getting laid off, Enming meets Zhu Fangting his old friend in elementary school, in the new job interview. Although Enming still spends all his spare time with Lu Hui, he is stressed by her who is in unable moods and has weird acts due to torture of the disease. Attracted by Zhu Fangting's considerate and relaxing nature, Enming gets closer and closer and sleep with her. They choose to continue their affair secretly. On a rainy night, Lu Hui disappears....

In the dark, a masked gangster storms into a convenience store  and robs it. A young man and the gangster scuffle together. A police car  quickly comes to the scene of the crime. Rongrong leaves her same-sex  girlfriend and begins dating the handsome young William. William doesn’t know  that he is just a tool used by Rongrong to get rid of her ex-partner and  communicate with her new girlfriend; Pakho’s addiction to gambling makes his  girlfriend Aling very distressed. William presses him for payment of debts,  so he has to take a risk. At the same time, Aling raise money for her  boyfriend, but gradually steps into the trap of the satyr Rio....

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A serious fire incident happens to a busy commercial tower. Inside the building, Keung, who worked as firefighters, quickly organizes an evacuation. But the fire spreads quickly to all corners of the building. Meanwhile, Tai-kwan, who worked with Keung before, is the captain of the Fire Brigade. And his wife is seeing a gynaecologist in the building. Tai-kwan sends in his unit to fight the fire immediately after he receives the alert. The unprecedented disaster reconnects Tai-kwan and Keung, who’d became estranged from each other for years....

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