Kelly Wright is a study in contradictions. She is a gay Texan and a second year resident in Ob-Gyn. Working in women's health, she says. People assume she is liberal. In fact, she is a devout Christian who won't perform abortions unlike most of her fellow residents. A case in which a woman died in childbirth, and the break-up of an important relationship have colored her first years of residency and led to career doubts.Mike O'Donnell is from a working-class Boston neighborhood, loves the Red Sox and is a doting father and devoted husband. Like Amanda, he has also been voted "nurse of the year." Viewers will watch him save a little girl's life and win the lasting gratitude of a shaken family.Kim Parks is a cardiologist assigned to work with heart transplant patients. One of them is Marvin Pollet, a middle-aged detective from Louisiana with a rare disorder affecting his heart that will kill him if a donor heart can't be found. He may be too sick to be eligible to be listed for transplant, and Parks who becomes emotionally involved with Marvin and his family has to lobby colleagues to get him on the list. It is a powerful story about the bond that can form between a patient and a caregiver.