Marcella's ex-boyfriend, Simon, re-enters her life with some startling news and further surprises arrive in the shape of his new wife, Tania. In an attempt to clear her head, Marcella sets out on a gung-ho camping trip - which sees her battling unsuccessfully with the great outdoors and ends up bringing her closer to her driving instructor, Jon. In the therapy room she reflects on some of the worst decisions she's made whilst inebriated.