 Jo hires Emily, a charming Englishwoman, as a nanny to look after baby son, Austin, while she organizes her departure from L.A. But Emily is not all as she seems. Alison returns from Twin Oaks, but doesn t lose her connection to Terry and ignores Billy s offer of help. Meanwhile, Peter surprises Amanda with the employment of Caitlin Mills, an equally ruthless efficiency expert who decides to improve D&D s efficiency by firing everyone she dislikes, except for Billy whom she finds attractive and Alison, for Caitlin too is a recovering alcoholic. Also, Michael heats up his personal cold war with Peter after he finds out about illegal kickbacks that Peter is receiving from a long closed account.