Ros has finally learnt about Ian's secret money-laundering past. When Miranda tells her that Kitty bribedback benchers to defect during the election, Ros feels that everything is finally slipping away from her. After an emotional chat with Emily, she decides to keep quiet about everything, cover up this mess and get on with her job. That is until Catherine finds out and tells her she has no alternative but to leave Ian or resign. Meanwhile, Catherine is struggling to cope after having a secret abortion. Ben leaves her when he finds out, but she surprises herself by proposing to him. The series ends with Ian summoned to Ros to hear her choice: job or marriage. (thetvdb.com)