In the first episode, Sarah has come to day surgery to have her umbilical hernia repaired. After she gave birth, her belly button never went back in. But before she even gets to the anaesthetic room, general surgeon Mr Redwood realises the problem is bigger than first thought.Four-year-old Dylan is struggling to hear which means he shouts instead of talks. It's painful and could be a build-up of ear wax. Ear, nose and throat surgeon Mr Beynon- Philips needs to find out what's going on so Dylan's mum can get some peace.And Geoffrey needs an operation to save his sight. The stakes are high: a similar operation two weeks ago failed, so he's back and pinning all his hopes on what happens.