Forensic accountant Monica Bolland tracks down white-collar criminals, but when her husband Josh, an undercover agent for the FBI, is killed, she goes undercover herself to find his murderer. She gets a bookkeeping job with a criminal cartel but her cover is blown just as she discovers the devastating truth about her husband and the forces that brought him down.

Twenty-four-year-old Kara Zor-El, who was taken in by the Danvers family when she was 13 after being sent away from Krypton, must learn to embrace her powers after previously hiding them. The Danvers teach her to be careful with her powers, until she has to reveal them during an unexpected disaster, setting her on her journey of heroism.