Fleur and Michael are pitted against each other in a race to diagnose a patient who is constantly arresting. When Fleur's ex-girlfriend arrives on Keller, it throws Fleur off kilter.

Mo and Jesse perform a high-stakes double lung transplant on a young patient. When there's a problem with the anaesthesia, the duo work together to solve the problem.

Serena is struggling with the deterioration in her mother's condition, particularly as Adrienne no longer recognises her. A war veteran helps bring them together. Show less