McCall and the team are on the hunt for buried treasure after a history professor obsessed with finding missing gold is killed. Meanwhile, Dante is reluctant to introduce his sons to McCall after she invites them over for dinner.

McCall visits "The Grave Digger," a serial killer she put behind bars a year ago, to uncover who is behind a series of copycat murders. Meanwhile, Dee skips her Peer Ear meeting to go to a party with Cam.