 Newley promoted vice president Lynette tries to put a daycare center in Parcher & Murphy by recruiting employees  children to get the program started. But she deals not only with her boss, Ed Ferrara s wariness to start it, but his domineering wife reluctant to give up their one-year-old daughter to daycare. Meanwhile, Gabrielle and Sister Mary Bernard face off over Carlos  mission of mercy to Africa in which Gabrielle resorts to some drastic measures to ensue that Carlos stays. Bree brings Andrew home from juvenile rehab and tells him about the revelation of the late George Williams poisoning his father. Not surprisingly, Andrew does not react as Bree hoped, and plots to drive her over the edge of sanity by provoking her anger. Susan confronts Addison Prudy s wife after she mistakenly thinks they are having an affair. Also, Zach Young returns to Wisteria Lane to stay with his father, who give Mike a stern warning to stay away from both of them. Elsewhere, Betty and Matthew help Caleb escape from the local mental hospital, while a mysterious PI/hit-man hired by the Foster family begins tracking Caleb.