Grace Travis begins as a San Jose police officer working undercover in Oakland to bring down Jimmy Laszlo's criminal enterprise. After Grace's son is murdered, she and Jimmy discover they have a common purpose. In the second season, Grace takes a new job as a handler for an FBI task force investigating corporate espionage in San Francisco. When a female undercover operative goes missing, Grace is forced undercover where she meets Ethan, a charming and enigmatic security consultant who might be responsible for the disappearance, or even death, of the operative.