When Clifford is admitted after a road traffic collision, it becomes clear his illicit activities have escalated, putting not only himself but possibly Fletch and Mo in jeopardy. Ollie and Seb clash over a case, and though their disagreement seems professional, could Zosia be the real source of their conflict? When Jesse and Guy have differing approaches to a patient's treatment, it highlights the fault lines in their increasingly fractious relationship. Is their partnership strong enough to survive?