In the episode the boyfriends review S4-E16 of Desperate Housewives 'The Gun Song'. THE PENULTIMATE EPISODE. Gaby and Carlos have to trick Ellie as the police bug the house, Bree is accused of being a whore by the new reverend, Susan and Mike struggle to come up with a name for their new baby, Lynette gets in trouble for smacking Kayla, and Wayne becomes even more erratic with his stalking of Katherine when she tells him that Dylan is not his child.