The Pinkertons is a TV show following the cases of the Pinkerton National Detective Agency as a historical crime procedural set in the 1860s. The series centers on Allan Pinkerton (Angus Macfayden), his son, William (Jacob Blair), and Kate Warne (Martha MacIsaac), the first female detective in U.S. history. 

Each episode presents a self-contained mystery, often inspired by real Pinkerton cases, while developing ongoing tensions between the characters. Kate must prove herself in a male-dominated field, while William struggles to step out of his father’s shadow. Their partnership grows as they face outlaws, corrupt officials, and dangerous criminals.