The fire at a boarded-up Catholic church raged hot and fast killing three firefighters. A year later, as the city prepares to honour their sacrifice, there are still no answers about how the deadly fire started. Most at the department believe it was just a simple accident. But Boston firefighter Jack McGee suspects arson. McGee is convinced department investigators aren't sufficiently connected to the city's lowlifes to get a handle on who's behind the blaze - so he takes the case to Spenser who quickly learns that McGee might be right.
