Fletch is recovering from being attacked. Progress stalls when he loses feeling in his feet. As the paralysis spreads, Raf struggles to diagnose the cause. Will he make a breakthrough before it is too late? The passionate courtship of a patient and her beau reminds Zosia what she has lost with Ollie. In the dark about Ollie's relationship with Jasmine, Zosia begins to think about the possibility of reconciliation. A happily engaged patient and her partner present a vision of what might have been for Sacha and Essie. Have they made the right decision in breaking up?