Come back to Cordial Creek and meet Sam O'Malley and Michael Flannigan's classmate, Dr. Brian Harding. Committed to saving his patients, Brian pushes himself so hard he forgets about saving himself. Diana Goodwin is filled with energy and enthusiasm, bringing sunshine everywhere she goes. She always sees the sunny side up side of life. When Dr. Harding, her high school crush, falls asleep at the diner while she's waiting tables, she'll decide it's time to teach him how to live again. As Diana opens the door to opportunity, Brian's past may slam it shut. They'll have to try and find their way to the sunny side of the street together.