In Melbourne, Australia, Kevin follows elite flight paramedics as they deliver high level emergency care at the scene of a night-time road crash, and sees a man's life saved by two sophisticated operations.

Kevin discovers a combination of high-tech medicine and old-fashioned heart in the surgeons who serve the Bronx, a community where gun violence is normal.

Kevin returns to King's College Hospital in London, where he spent several years as a doctor, to see if trauma care in the U.K. matches up to the world's best.

Kevin visits the Charlotte Maxeke Hospital in Johannesburg, which operates on a fraction of the budget of other trauma centers, yet is the place where young doctors from all over the world go to learn trauma medicine.