When tragedy erupts on a stifling summer night, three ordinary people, with the extraordinary jobs of rescuing strangers, are connected to one another in ways both explicit and invisible. Each is deeply devoted to what they do, but they are all beginning to crack under the immense pressures of their work. Tough-as-nails Kate, when she's not working with her beloved search-and-rescue dog, Zeus, is a trauma nurse who spends her off-duty hours trying to forget what she has seen. Estranged from her troubled family, she must confront the fact that resolution may elude her forever. Respected police officer Mike is on the edge of burnout and sets himself on a downward spiral that may be impossible to break, fraying the bonds of love that hold his family together. Tamara, an agoraphobic 911 dispatcher, who is trying her hardest to remain as calm and emotionless as an automated message, is propelled into the middle of a story that she can't avoid and must enter the world to find out how it ends. With a city prickling under a heat wave and a hurricane threatening to make landfall, these responders will be forced to make fateful choices that will alter lives. A storm is coming and nobody is prepared.