The fourth generation heir of the Cheng family, Cheng Yuan, returned from the United States. On his way home, someone had hidden marijuana in the bedroom of his cabin. Coincidentally, he avoided it because he swapped cabins with someone else. The Chinese couple who swapped cabins with him were named Li Kejin and Wu Yue respectively. Li Kejin was wrongfully arrested, and Wu Yue came to the island and asked Cheng Yuan to rescue Li Kejin. Cheng Yuan was deeply involved in the chaos of the family after his father's death. He must marry Lida, the daughter of Mr. Fei, and stabilize the family's relations in all aspects in order to get out of the mess.