In just 3 days, three cases of Smiling Murder shock Hong Kong. As he looks into the homicide, the young detective Wang Bu Er (Wen Zhang), the police station's reckless buffoon, makes a shocking statement that this is a serial murder.
Detective Zhong Wen heads to Wu Bar in search of his estranged daughter, Miao Miao, who is now the girlfriend of the nightclub's owner, Wu Jiang. However, Zhong disapproves of Miao's relationship, which leads to an argument between the father and daughter. Before Zhong can make amends with Miao, he is struck in the head by an unnamed assailant, in a plot orchestrated by Wu.
The story occurs in a fantasy world called Galilee City, that consists of two contrasting communities. One group lives on the Rooftop, where they dance and sing their days away with no worries. While those on the ground are affluent and possess more power.
Yen takes on the role of Dragon Chan, a Hong Kong undercover police officer deep within the ranks of one of China’s most ruthless underworld gangs. The leader of the gang, Hung (Collin Chou), has made it his priority to weed out the government infiltrators in his midst. Struggling to keep his family together and his identity concealed, Chan is torn between two worlds.
In 1949, Ip Man, who has been suffering from chronic gastric pain, travels alone to Hong Kong. He starts by teaching Wing Chun on the rooftop of a building which houses a hotel staff's general association. He meets and accepts new students, including Tang Shing, Leung Sheung, Wong Tung, Lee King and Chan Sei-mui. During that period of time, Ip Man's wife, Cheung Wing-sing, also comes to Hong Kong to join her husband, but returns to Foshan shortly after because life in Hong Kong is hard. The couple never saw each other again because Cheung died not long after returning to Foshan. His son Ip Chun comes from Foshan to Hong Kong to join him.
Boss Cat (Eric Tsang) is a warrior who had participated in the Boxer Rebellion. Cat is responsible for guarding Huang Jin Xia town, which have gathered many revolutionaries around China. There, they do not discuss about revolution nor care about politics and lead peaceful lives there. Sai-lim (Gigi Leung), a woman who was rescued by Cat, is oblivious that years ago, Cat not only rescued her and her child, he also rescued her heart.
The movie begins by Jackie Chan telling the story of the Old Summer Palace and its looting and destruction by British and French soldiers in the Second Opium War. Among the treasures stolen are twelve bronze heads of the animals of the Chinese zodiac.
In nineteenth century China, Jungle Village is home to several warring clans. The village blacksmith creates deadly weapons for the clans, intending to use his payments to purchase the freedom of his lover Lady Silk, and leave the village. The region's governor tasks the Lion Clan's leader Gold Lion with protecting a large shipment of gold that must pass through the village. Gold is betrayed by his lieutenants Silver Lion and Bronze Lion, who plan to steal the gold. They use the chaos ensuing from a fight with the Hyena Clan to allow their co-conspirator Poison Dagger—the governor's aide—to assassinate Gold, after which Silver becomes the Lions' leader. Gold's son Zen-Yi learns of his father's murder and sets off to the village to seek revenge.
The movie is set during the reign of Emperor Huizong in the late Northern Song Dynasty. The government department known as the "Department Six" customarily has full jurisdiction over all criminal investigations in the imperial capital. Department Six is well-staffed and operates in a highly disciplined manner. Their chief, Commandant Liu, ranks the investigators by clearance rate and dangles the prospect of an operator to be named one of the "Great Four".
The story closely follows key events of the Xinhai Revolution, with focus on Huang Xing and Sun Yat-sen. It begins with the Wuchang Uprising of 1911 and follows through historical events such as the Second Guangzhou Uprising on 27 April 1911, the deaths of the 72 martyrs, the election of Sun Yat-sen as the provisional president of the new Provisional Republic of China, the abdication of the last Qing dynasty emperor Puyi on 12 February 1912, and Yuan Shikai becoming the new provisional president in Beijing on 10 March 1912.
The Emperor's eunuchs have gained power and influence, the East Bureau and West Bureau spy and police the nation. They visit the shipyards, but only as a cover to execute those who would try and report their taking of bribes to the Emperor. Wandering hero Zhao Huai'an fights the leader of the East Bureau, defeating him and putting his head in a box and hanging it as a warning to other corrupt officials.
An opening prologue set years before the events of the first film tells that Lord Shen, the scion of a peacock clan that rules Gongmen City in ancient China, seeks to harness fireworks as a weapon. After discovering from the court's goat Soothsayer that "a warrior of black-and-white" will defeat him if he does not change his ways, Shen leads an army of wolves to exterminate the panda population to avert the prophecy. Shen's parents are horrified at this atrocity and exile their son, who swears revenge.
The film is set in Dengfeng, Henan, during the warlord era of early Republican China. A warlord named Hou Jie defeats a rival, Huo Long, and seizes control of Dengfeng. Huo Long flees to Shaolin Temple to hide but Hou Jie appears and shoots him after getting his treasure map. Hou Jie ridicules the Shaolin monks before leaving.
The film starts with Abbott Fahai and his assistant Neng Ren heading towards a snow blizzard through a magical door. An ice harpy appears at the top of the mountains and turns the impetuous Neng Ren into an ice statue. She then reveals her past and reasons to kill all men. Unable to persuade the ice harpy to turn over a new leaf, Fahai is forced to fight the ice harpy. The battle ends with Fahai capturing the ice harpy using a demon trapper, which releases Neng Ren from ice. Neng Ren is then tasked to confine the ice harpy at Lei Feng Pagoda, and the master and assistant head back to the door which disappears after closing behind them. At Lei Feng Pagoda, Neng Ren transfers the ice harpy from the demon trapper into the magic circle, which holds other trapped demons in it.