As the Shen's prepare for Harmony Dumplings' grand reopening, they learn that they have become the latest victims of a crime wave that has hit their Chinatown community. As Nicky and the team prepare to take matters into their own hands, a run-in with a vigilante named Bo leaves Nicky wondering who this mysterious stranger in her city is. Elsewhere, following the legal fallout from her app, Althea and Dennis move back in with Mei-Li and Jin, and Ryan and Sebastian adjust to living together, while juggling their busy schedules. Finally, the unexpected arrival of someone from Nicky's past rocks her to her core.

When someone from Nicky's past shows up unexpectedly, she reaches out to Ryan for help uncovering why. Jin takes on the Chinatown Council, while Evan and Althea investigate what may be behind the city's recent rise in crime. Finally, Mei-Li meets with Carrie, the representative of a restaurant investment group, and Henry's globetrotting search brings him to one of his father's former allies.

After learning that Henry is a person of interest in a heist gone wrong, Nicky travels to Thailand to help him - a move that forces them to confront their unresolved issues. When Mei-Li needs help reorganizing at Harmony Dumplings, Jin and Althea team up to help. Elsewhere, Ryan gets some relationship advice from an unlikely source.

With the grand reopening of Harmony Dumplings just around the corner, it's all hands on deck to make sure it goes off without a hitch. However, things take an unexpected turn when the Shen's receive a mysterious threat on the eve of the restaurant's reopening. Elsewhere, Jin faces a new challenge and Ryan scrambles to find Sebastian the perfect gift.

Nicky is forced to put things with Bo on the back burner while she figures out how to help Pei-Ling. Sebastian voices his concern to Mei-Li about corporate's growing oversight on the restaurant. Althea and Evan help Jin after a local politician is robbed of some valuable research. Finally, Zhilan makes her move.

Nicky, Henry, Ryan, and Pei-Ling try to make sense of some disturbing information they've learned about Xiao. Althea and Dennis help his sister after she learns that money has gone missing from their family's charitable trust. Elsewhere, Mei-Li is forced to make an impossible decision.

After her latest mission unearths some startling information about Xiao, Nicky and the team devise a plan to deal with her once and for all. Althea gives Evan some advice on his relationship with Nadia, and Jin prepares for his first interview.

Following an incident involving her parents, Nicky stumbles upon a devastating secret. Elsewhere, Mei-Li gets creative at the restaurant, and Bo faces demons from his past.

After a campaign ad targets the Shen family, Mei-Li takes matters into her own hands. Elsewhere, Delta Security's influence over the city becomes apparent after Ryan makes a shocking discovery at the hospital.

With her world crashing down around her, Nicky is forced to reevaluate her recent actions in order to move forward. Althea goes under cover to gain more information about Delta Securities. Henry and Zhilan follow a lead regarding Xiao's whereabouts.

With time running out, Nicky is forced to confront Bo to get information on Xiao's whereabouts before it's too late. Mei-Li clashes with Carrie at Harmony Dumplings, and Jin makes a surprising decision that could affect the outcome of the election.

Henry finds himself on a collision course with Xiao, whose latest plan results in devastating consequences for Nicky and her family.

After uncovering Xiao's master plan, Nicky and the team find themselves in a race against the clock to stop her before it's too late.