Nelson faces his inner demons when he discovers a six-year-old girl, near death, locked in a car outside a pub on a blistering summer's day. When the girl's father turns up in the ED, drunkenly belligerent, then full of remorse, Nelson fury forces him to goad the father into violence. Vincent and Cate work hand-in-hand at a building site to free a construction worker trapped by the collapse of a retaining wall. When the window of opportunity to rescue the man starts to close, Vincent finds himself in the precarious position of having to amputate the crushed leg, right here, right now. The operation is a success, and Barry, still critically ill and bleeding internally, is transported to hospital. It's there that Denise drops her façade and the truth behind her decision is revealed. Charlotte treats a disoriented woman for meningitis and witnesses the deep, enduring love between her and her husband. Later, Charlotte is pleasantly surprised when Jack announces he is the father of her baby. Cate goes to see Mac at the end of her traumatic day, full of hope. What she finds shocks and rocks her world.