A grieving Morven will not accept the circumstances of a close tragedy and will stop at nothing to get the truth. A familiar face arrives on Keller for emergency surgery, putting Sacha in a compromising personal and professional position. When Nina makes her presence felt on Darwin, Matteo starts to see her in a new light. Could she be the one that got away?

Essie worries she is not being a good foster parent to Parker. Raf would love to help, but is she ready to let him? On Morven's first day back, a tricky patient diagnosis throws her straight in at the deep end. It is Damon's assessment day, and Matteo recruits an unenthusiastic Jac to work with him.