An horrific accident brings a family into the Emergency Department, and Terri finds herself spending her last day at All Saints on a crusade to alleviate a young girl's guilt. Her last day is fraught with complications as a family's celebration goes horribly wrong and their hot-air balloon crashes in dense bushland. The All Saints team find itself juggling multiple casualties as well as the news that a member of the family has gone missing at the scene. Terri nurses the daughter of the woman the team could not save and finds her patient is burdened with survivor guilt. Frank urges her to keep her distance and refrain from seeing this as her last crusade, but Terri can't walk away. As the day wears on, Terri says her goodbyes to those she's closest to but Jack keeps his distance. She soon discovers that she can confidently hand over responsibilities to Nelson and the team she has come to know and trust. As the All Saints chapter of Terri Sullivan's career closes, her farewell ...