Life at Glenbogle takes a dramatic turn as Archie finds himself faced with a life-changing decision and Molly embraces the idea of finding love again. Despite their best efforts, it's clear that Paul and Archie's partnership can't work. When Jess informs the brothers that she can't take Duncan's job they offer it to Duncan agian, but he refuses - as far as he is concerned, it's her job by rights. In an attempt to reslove the crisis of finding Glenbogle a Head Ranger, Paul and Archie decide to give their partnership one last go. Molly is angry that Andrew has shunned her since returning from their weekend away, but he explains that he has used their time apart to come to a decision about their relationship and aks for Molly's hand in marriage. Before she can give Andrew her answer, Molly is distracted by the arrival of her daughter, Lizzie, who returns with her young daughter, Martha, in tow. Over dinner with Jess and Duncan, Golly makes the decision to act on his hidden emotions for Molly or face a lonely life on his own. A mutual misunderstanding causes Paul and Archie to exacerbate the Head Ranger crisis and it becomes clear that there can be only one laird of Glenbogle. During a heart-to-heart with Archie, Lizzie explains how she received a letter from their father, Hector, before he died in which he talked about climbing a mountain in Nepal. Much to Archie's surprise, she suggests that they climb the mountain together. Torn between his love for Glenbogle and his desire to seek new challenges in life, Archie is faced with a difficult decision - one which will have a profound effect on the family.