Teamwork keeps the hospital running smoothly 365 days of the year. Orthopaedic surgeons Mr Dougall and Miss Mills pair up to do an unusual and demanding operation on a four-year-old boy whose hip joint keeps slipping out of its socket. Audiologists Vanessa and Gordon test a new hearing aid on Hannah, who has a rare genetic condition that affects her hearing. Meanwhile, six-year-old Olivia comes to the end of life-changing treatment for acute lymphoblastic leukaemia, and domestic assistant Mandy shows the tricks of her trade to keep the hospital clean and safe.