Catherine has a pregnant teenage patient, Tyler – then finds Noah might be the father. Catherine can’t betray patient confidentiality. Mac finds out about Noah’s predicament, and Jo finds that Catherine is Tyler’s doctor. Catherine pleads her case, but Mac feels betrayed. Mac and Catherine make peace, but Mac and Jo end up united as parents. Emma has a crisis with a blocked toilet, and Brian sees a way to impress. Michelle meets Richard again. When David discovers this secret liaison, he is angry – and suggests he up her medication. Michelle tells Richard she can’t see him anymore. Michelle, on more drugs, starts to suffer the consequences.