Fletch is in the grip of a creeping paralysis, and Raf struggles to make the diagnosis that will save his life. Ollie attempts to tell Zosia about his relationship with Jasmine with disastrous results. Sacha and Essie come to terms with their break-up.

Mr T comes to Mo's rescue when she fears for her baby's life. Bernie makes a big decision about her future with Serena when an exciting opportunity arises. A big step in his relationship with Isaac puts Dom's friendship with Zosia at risk.