Four trauma doctors--the best and brightest in their field--confront exciting new challenges, both personally and professionally, when given an unusual opportunity ... These exceptional doctors are chosen for an honor and a unique project: to work with their counterparts in Paris in a mass-casualty training program. As professionals, they will gain invaluable knowledge from the program. As ordinary men and women, they will find that the City of Light opens up incredible new possibilities, exhilarating, enticing, and frightening. When an unspeakable act of mass violence galvanizes them into action, their temporary life in Paris becomes a stark turning point: a time to face harder choices than they have ever made before--with consequences that will last a lifetime.