Kung and Kin's rivalry goes way back to the seventies when they fought over the same girl, who eventually became Kung's wife. Now they run competing phone stores right across from each other on Mongkok's busiest street, and stretch their minds trying to outdo each other with crazy promotions.

Song Ci is invited to the Southern Song capital - Lin'an - to investigate the murder allegedly committed by the Goddess of the Night.

A locust plague that was rare in a century has invaded the land of Wuzhou. Empress Wu Zetian orders the delivery of relief money to the disaster area, but on the way, tens of thousands of taels of silver are robbed and disappear into butterflies. Detective Dee has ordered his personal assistant Zhao Yuanzhen to investigate the case, while he himself sneak into the civil investigation on streets. In the process of investigating the case, they encounter a suspect, Guan Xiaoqi, who needs to prove his innocence, and are caught in a difficult situation when the relief money is robbed again. The case of the butterflies is a mystery, and the dynasty's power and intrigue are raging.

On the eve of the return of Macau in 1999, sculptor Gu Songlin went to Macau to collect the sculpture "The Flourishing Lotus" presented by the Central Government to the Macao Special Administrative Region, and became a close friend with Liao Jichang, the head of the Liao Ji Wood Sculpture Store. Ten years later, "Wood Carving-Idol Carving" became the first project in Macau to receive the honor of "National Intangible Cultural Heritage".

Laughing is formally a police undercover. However due to a drug trafficking case, Inspector Pan is hot on his trails. Before Laughing becomes a police undercover, he works under triad leader Yi. Yi treats Laughing as his own brother, however to protect his territory and illegal businesses, Yi instructed Laughing to join the police force and act as his undercover. Laughing is a high-flyer in the police academy. However he never got a chance to join the force because he is specially picked by Inspector Xian to be an undercover in the underworld syndicate. Hence Laughing becomes a “double-undercover”. Yi is happy that Laughing is allocated to the triad of his rival. To make his situation worse, Laughing falls in love with the triad leader’s sister, Karen. Justice, brotherhood and love, what will Laughing decide on? His decision will be a turning point in his life.

Zhong Kui joins forces with Princess Jiao Long to kill the son of the Tiger King who has been acting recklessly.