When Zosia oversteps with a patient, Oliver faces an unwelcome dilemma. As his suspicions spiral out of control, Zosia makes a gut-wrenching decision. Still bruised from the impact of her suspension, Serena returns to find Bernie helping out on AAU. However, Serena's gratitude is short-lived when she discovers the real reason for Bernie's presence on the ward. As Arthur embarks on a soul-searching daytrip, Dominic leaves him to go it alone. But when Arthur struggles, Dominic makes a rash decision.

When bad publicity threatens Zosia's participation in Jac's new stent, she fights to prove herself worthy. But when a loved one needs her help, will Zosia sacrifice her own career to help them? Ready to prove himself the best junior doctor on Keller, Dom is unnerved by a face from his past. Can he keep it together? Bernie struggles to find her place on AAU when an overbearing Serena insists she knows best. But will Jason become a casualty of their spat?