 The criminal gang don disguises—Sid dresses as the foreign "Dr Zhivago" and Ernie as a heavily expectant mum—but the crime is thwarted by the mothers-to-be.The medical hierarchy's threat to call the police is halted when Sid reveals the heroine of the day is a man, and the hospital realise they would suffer nationwide humiliation if anyone found out.Cyril weds his shapely nurse Susan, and Matron finally gets her doctor.