Dissatisfied with life with Jack, Penny offers a home to baby Zero and his homeless mother.

The Revenue Men is a British television series, produced and transmitted by the BBC between 1967 and 1968. The series dealt with cases handled by the Investigation Branch of Customs and Excise such as the illegal import of goods, illegal immigration and business transactions amongst travellers. The Revenue Men was produced by Gerard Glaister. The series lasted for three series and 39 episodes in total. In spite of this fact, all of the episodes were later wiped, with no episodes extant in the BBC archives as of 2009.

Public Eye is a British television series that ran from 1965 to 1975. It was produced by ABC Television for three series, and Thames Television for a further four series. The series depicted the investigations and cases handled by the unglamorous enquiry agent Frank Marker, an unmarried loner who is in his early forties when the series begins. In the words of an ABC trailer for the third series: "Marker isn't a glamorous detective and he doesn't get glamorous cases—he doesn't even get glamorous girls. What he does get is people who are in trouble—the sort of trouble you can't go to the police about, even if you are innocent."