Newlyweds Adam and Emma Channell want one last adventure before they start a family. They plan to go off grid in some of Britain's most remote rural areas, such as the Yorkshire Dales and deepest Wales, but paranoia soon kicks in. Freddie Young, a 21-year-old teaching assistant from Essex, is also on the run - although he is accompanied by his mother-in-law Jacqui Omer, who insists on coming along as she is convinced he can't cope on his own. Meanwhile, Emily Dredge is finding the pain of being apart from her baby unbearable and considers nipping home to see him. Will this be her final mistake?