Julie comes to visit Susan and brings a suprising boyfriend from college; Gaby learns a shocking truth about Mrs. Hildebrand's past; Katherine makes a confession to Susan; a reporter looks to expose Bree; and Lynette learns Porter and Anne's plans to leave Fairview.  Meanwhile, when everyone gathers at a night club for the annual battle of the bands, there's a fire that threatens the lives of all on Wisteria lane.