Following the 1911 Xinhai Revolution that overthrew the Qing dynasty, China entered a period of turmoil, with drastic political changes and the start of the Warlord Era. Chen Zhen has been hiding in Foshan until he receives a message and decides to return to Shanghai. Upon his return, Chen sees that a brothel now stands on the old location of Jingwu School. Apart from having to shoulder the heavy responsibilities of rebuilding Jingwu and raising Huo Yuan Jia's orphaned son, Huo Dong Jue, Chen runs into trouble with the gangs and has to hide from the police.
Christopher, a middle-aged man who is obsessed with repairing old radios, marries the Russian bride Natasha. She comes to live with him and his mother Dora in his London house. Dora instigated the marriage in order to have someone look after her son when she dies. Natasha is bored as Christopher takes no sexual interest in her, and she is treated as a servant. Eddie, an out-of-work actor, stirs up the household when he befriends Christopher and Dora, in order to seduce Natasha.
Harvey Birdman, Attorney at Law features ex-superhero Harvey T. Birdman of Birdman and the Galaxy Trio as an attorney working for a law firm alongside other cartoon stars from 1960s and 1970s Hanna-Barbera cartoon series. Similarly, Harvey's clients are also primarily composed of characters taken from Hanna-Barbera cartoon series of the same era. Many of Birdman's nemeses featured in his former cartoon series also became attorneys, often representing the opposing side of a given case.