Charlie Phelps, the new Detective Inspector at the City of London Police, hires Eliza for a case involving his uncle, Dylan Cooper. But it turns out that Scotland Yard is also after Cooper who has committed crimes in both jurisdictions, leaving Eliza in the middle.

In Season 6, Miss Eliza Scarlet (Kate Phillips) is doing her best to have it all. Her business is thriving, but her personal life enters new territory as she attempts to follow her heart and develop a relationship with Inspector Alexander Blake (Tom Durant-Pritchard). Eliza may be an expert solving crimes, but she’s very much a novice when it comes to love. Can Eliza juggle the twin demands of her personal and professional life?