Fletch attempts to build bridges between a feuding father and son following a car crash in which another sibling suffered a serious head injury. Cal tries to impress Lily as they work together on a patient who appears to have used the internet to diagnose himself with a brain tumour, and Jeff agrees to cover for Ash's daughter, Ella, after she suffers an allergic reaction to ketamine at Robyn's house party (thetvdb.com)