12-year-old William is hit by a car and rushed into A&E. The hospital’s trauma team check for potentially life-threatening injuries. Nicholas baffles medical experts with his mysterious swollen ear. Paediatric surgeon Miss Clarke hopes a biopsy will help solve the puzzle. Kyla has an appointment at the hospital’s Hand Therapy Service after having an extraordinary operation to remove her index finger and reposition it as a thumb. The hospital’s linen service throws open its doors to show how it copes with washing 4,000 bed sheets every month.