A Revolutionary War re-enactment becomes the scene of a real killing when a soldier turns up dead. Maura's extensive knowledge of American history becomes important as she and Jane try to solve the case. And Maura's brilliant mother, Constance Isles, comes to Boston for an art exhibit.

Jane and Maura delve into a family's background when a man is killed in what appears to be a mugging gone wrong. Meanwhile, a romantic and mysterious figure from Maura's past shows up, causing a rift when Jane suspects Maura is hiding something.