An incursion into the breathless daily life of the paramedics of Urgences-Santé. Through the calls to which they respond, we discover these men and women who criss-cross the streets of Greater Montreal serving the population. On the ground, the challenges are immense. But it is the human character that emerges from each of their interventions. A series that delves into the heart of their work, but above all, into their motivations and their reflections on the crucial role they have to play.