A devastating accident requires the help of Hope Zion Hospital’s doctors at an offsite army base, and Dr. Charlie Harris (Michael Shanks) and Dr. Joel Goran (Daniel Gillies) flip a coin to decide who will take the call. When Joel wins the toss, he and Dr. Zach Miller (Ben Ayres) depart for a heart-pounding day as they attempt to save the life of a soldier in dire circumstances. Meanwhile, Charlie and Dr. Dawn Bell (Michelle Nolden) work to save a victim of hypothermia, and it’s do or die time for Hope Zion Hospital’s surgeons-in-training when Dr. Alex Reid (Erica Durance), Dr. Maggie Lin (Julia Taylor Ross), and Dr. Rian Larouche (Danso Gordon) finally face the future and their Surgical Boards. But for Alex, the biggest day in her career is also about to become the biggest day of her life.