Robert is angered to discover that Jack has called a risk management investigator into the hospital to question the team following the incubation disaster. Mike goes head-to-head with Robert over the treatment of a drug addict who appears to be showing signs of sickle cell anaemia, and tries to help a young schoolboy whose problems seem to stem from the lack of attention from his mother. The team use a golden opportunity to prank David when he learns that Zara Phillips is a good friend of one of his patients.