Nicky Shen returns from China to San Francisco, she finds her hometown is overrun with crime and corruption and her own parents, Jin and Mei-Li are at the mercy of a powerful Triad.
Nicky enlists Henry to help hunt down Zhilan; Jin anticipates a return to normalcy, but Mei-Li isn't as optimistic; Nicky finds clarity after helping a woman in need.
Nicky and Henry follow a lead involving a professor who may be of help in their search for Zhilan; a squabble between Jin and Mei-Li reveals bigger issues in their marriage while Althea is haunted by her past.
As Nicky and Henry follow a new lead that brings them to a private collector in Napa, a tension-filled dinner with the Soong's leaves Althea to question her worth. Elsewhere, Evan's suspicions about Henry continue to grow.
An officer-involved shooting in Chinatown sends shockwaves through the community. Mei-Li and Jin are forced to revisit a traumatic experience from their past. Nicky and Henry make a startling discovery about the weapons.
When the retrieval of a weapon doesn't go as planned, Nicky takes matters into her own hands; Jin takes Mei-Li on a Surprise date; Althea Finds herself faced with an ultimatum.
After learning some devastating news about Pei-Ling, Nicky attempts to keep herself distracted by offering to help a young woman in need; Zhilan Confronts her past; Mei-Lei makes a startling confession.
Nicky follows a lead that brings her, Henry and Evan to a quiet town in Canada; Zhilan joins forces with Kerwin Tan; Jin and Mei-Li find themselves at a crossroads.
To clear a college student's name for a crime he didn't commit, Nicky goes back to school. There, she crosses paths with a sorority with a dark secret.
Nicky and Henry follow a lead that brings them to a K-pop concert in Las Vegas - and on a collision course with Zhilan and Kerwin. Elsewhere, Jin and Mei-Li make a major decision about the restaurant.
With time running out, Nicky and Henry work to translate a cryptic map that could lead them to the Forge. Meanwhile, Althea and the family prepare for Po Po's arrival.
In the explosive season finale, Nicky learns what is needed to open the forge. Meanwhile, an emergency at home threatens to derail Althea and Dennis' tea ceremony.