La saison 5 de Never the Twain a été diffusée sur ITV1 du mercredi 8 janvier 1986 au mercredi 12 février 1986. Elle comporte 6 épisodes, le premier s'intitule "In Whom We Tryst" et le dernier "Definitely Not Cricket".
Simon Peel and Oliver Smallbridge contest a bitter rivalry in all that they do. Not only are they next-door neighbours, they are also rivals in the antiques market (formerly business partners, they are now pursuing trade individually). Typifying his character, Peel believes that he deals in the best end of the business, Smallbridge the tatty end.