Around 20% of the UK's heart transplants take place at the NHS Golden Jubilee every year. 48-year-old Joanna thought she was coming down with Covid, but she soon discovered she was in serious trouble, on the brink of heart failure. Now she urgently needs a heart transplant, but after two failed attempts to find her a viable heart, Joanna's health takes a dramatic turn for the worse.Some of the Heart Hospital's patients have lived with a heart condition all their lives. Social work student Hayley has a rare condition called Tetralogy of Fallow. It means that at the tender age of just 21, she's now facing seven hours of open-heart surgery to replace one of her heart valves. It's an agonising time for both her and her parents.Retired heating engineer Chris moved to Scotland for a change of lifestyle with his wife Sharon and daughter Anna, after he had a heart attack six years ago. He's been suffering from coronary artery disease and now needs major heart surgery, but at his pre-op appointment, Surgeon Zahid Mahmood decides the surgery is now urgent.