Part 1: The First Minutes of a Disaster

Within moments of the first alarms, homes and businesses in Massachusetts’ Merrimack Valley are aflame. Hundreds of people call 9-1-1, as thousands of residents in Lawrence, Andover and North Andover run from their homes, seeking safety in the streets. By the time the gas is shut off, 131 buildings are damaged or destroyed, one person is dead, and nearly two dozen are transported to hospitals.