Back with the Hop Wei, Ah Sahm spends his nights at the Barbary Coast fight pit, confronting a new anti-Chinese group, Teddy’s Boys. While Ah Toy accuses him of just looking for another fight, an empowered Mai Ling worries about her brother’s next steps. Meanwhile, Bill finds it hard to break out of his role as enforcer for Zing; Penny is determined to continue running Mercer Steel, much to Blake’s dismay; and Chao offers Ah Sahm some advice for his future with Young Jun.

Ah Sahm and Young Jun search for a discreet place to hide their product after striking a deal with a new opium supplier. As Lee becomes increasingly dependent on laudanum, he and Bill continue to investigate the swordsman murders. Mai Ling sends Li Yong and Zing to deliver a message to a rival tong. Penny asks for Ah Sahm’s help in protecting her factory. Sophie continues to pique Leary’s interest. Ah Toy receives a visit from Nellie Davenport, a wealthy widow committed to ending the exploitation of Chinese women.

With their new enterprise going well, Young Jun shares his worries with Ah Sahm about the new men Father Jun has brought over from China, and later, the partners are impressed by Hong, an enthusiastic recruit with a secret. Meanwhile, Chao goes to Mai Ling for help keeping Zing away from his business, Sophie grows closer to Leary, Nellie’s politics raise questions from her peers, and things take a deadly turn at Bill’s home.

A guilty Mai Ling tries to make things right with Ah Sahm, who’s more intent than ever on seeking revenge. Penny finds her business in trouble and learns that Ah Sahm has been using her. Leary gets a warning and offers one of his own. Ah Toy pays an emotional visit to Nellie’s Sonoma winery. Bill and Chao put their plot against the Fung Hai into action.

Ah Sahm, Young Jun, and Hong travel with Vega to Rooker’s Mill, a U.S.-Mexico border town owned by Elijah Rooker, the wealthy host of a lucrative fight tournament that Ah Sahm is determined to win. As he learns more about Vega, Ah Sahm draws the attention of another fighter, Dolph, and later, Rooker himself.