Mike finds Zach holding Susan hostage; Lynette interviews for a position at a top ad agency; Rex's mother (Shirley Knight) arrives for his funeral; Gabrielle, feeling guilty, visits Carlos in jail.
The women of Wisteria Lane are envious of Bree's cookbook and her entrepreneurial success; Lynette weighs in on Bree's marketing plan; Mike feels that he is not enough of a presence in his son's life.
An intruder causes panic on Wisteria lane; while at her mother's wedding, Susan learns jolting tidbits about her father.
Bree's mother-in-law, Phyllis, gets her into trouble with the law; Susan bravely tries to accept Edie's new role in Julie's life; Lynette's demanding boss makes her miss Parker's first day of kindergarten.
The team searches for a pair of suspects responsible for several murders near Pittsburgh; Morgan and Garcia make Valentine's Day plans with their significant others.