Robyn McCall, an enigmatic former CIA operative, must use her extensive skills to help a teenager who is accused of murder and on the run from the criminals who framed her for the crime.

A mother's son is kidnapped by a human trafficker and will be executed unless McCall steals confidential information from her FBI agent employer; McCall enlists Aunt Vi to help uncover a secret Delilah is keeping from them both.

McCall tries to help an escaped prisoner wrongly accused of murder; McCall worries when her daughter, Delilah, stops hanging out with a close friend; detective Dante's search for McCall takes an unexpected turn.

McCall investigates a community activist's staged suicide and uncovers a connection between his murder and his protests over local real estate development; Delilah's driving lessons lead McCall and Aunt Vi to teach her an even bigger lesson.

When McCall tries to locate a missing British mathematician, she finds herself embroiled in an international fight for a revolutionary financial technology.