Following their split, Louise is determined not to give up on her relationship with Andy, and creates a plan to win him back. But can Andy overcome Spencer's growing involvement in Louise's life?Lucy is unimpressed when Spencer sets his romantic sights further afield, and swaps Chelsea girls for a mystery Californian.Undeterred by strong words from Phoebe, Fran and Alex arrange a one-on-one. Jamie treads on dangerous ground as he begins a flirtation with Lucy. And Mark Francis and Victoria introduce their fashion designer friend Sophie Hermann, as the gang watch polo at Guards.