Most parents dream big for their kids, but when your child's health is in question, all of that changes. Priorities shift as events threaten to change their futures forever. This episode follows parents rapidly adjusting their hopes for the future in the face of potentially life-threatening accidents, and another mother refusing to abandon her hopes for a son who urgently needs an organ transplant. Twelve-year-old Mollie is brought to A&E by ambulance after being knocked over by a car on her way home from school. Until Mollie's parents arrive, Dr Kate has to be mum and dad as well as treating her injuries.