When Patrick and Helen are arguing with Charlie, they manage to turn it round to an argument with each other! Helen accuses Patrick of being jealous of her work and Patrick has a strop when Helen goes out to the pub.
Billy has a blind date with someone he has met on the internet. When he bumps into Moira, he becomes convinced it's a wind up and that it's her. When he meets the real 'Lady D'Arbanville', he manages to upset her with his poor knowledge of The Prisoner. She accuses him of being a fraud and bringing her out on a date under false pretenses.
Meanwhile, Charlie is bemused by her dad's childish approach to his argument with Helen. Eventually, after explaining that being married makes you an expert in arguing, Patrick is talked into going and finding Helen. When Moira implies that Helen and Patrick are unhappy, Helen says they are incredibly happy. When Patrick arrives, Helen is overly nice to him - much to his confusion! Joe is convinced that Moira and Billy should get back together, which is reinforced when Moira goes out to rescue Billy from his blind date.