Barney creates a holiday to celebrate not being a father. Meanwhile, Lily and Marshall are considering having a baby, but Lily first wants advice from Ted and Robin.
Blair sets out on a mission to break up her mother and Cyrus Rose, her new man. Jenny moves in with Agnes as the two continue with their plans for their own fashion line. As Serena continues to fall for Aaron, she learns something that may derail their relationship forever while Dan interviews Bart Bass for an article for New York Magazine.
Alan tries to escape Judith's grasp as Charlie and Herb go on the prowl to pick up women. They later end up going back to Herb's hotel room with two prostitutes, where Herb declares his love for Judith and races over to win her back.
The team travels to Iraq to save Jonas' daughter, who has been kidnapped; Col. Ryan must face the consequences for his adultery with Mack's wife.
Lynette and Tom uncover the unsettling truth about son Porter. Gabrielle suspects Carlos' best client, Virginia, has ulterior motives. Bree's moment of weakness could bring her great embarrassment and shame. Katherine's not-so-little secret is unveiled. Susan learns of Jackson's true passion. Finally, Mrs. McCluskey's sister Roberta unearths a disturbing fact about Dave.
Eight-year-old Brian (who is 56 in dog years) seems to have lost a step or two, so Peter gets a new talking dog, New Brian, to "take some of the load off" the old one, who doesn't like the idea at all.
Hank attempts to find a love interest for Becca's teacher. Charlie uncovers Marcy's secret which could have fatal effects on their finances.
Dexter angers Miguel when he says no to his latest offer, who's unsure the next target lives up (or down) to Harry's Code. Meanwhile, an elderly, deathly ill Camilla asks Dexter to kill her, insisting she would never ask a friend to do something against his conscience. Also, Rita discovers that Sylvia believes her husband Miguel has had an affair; and Anton is told he is bait to get at Skinner.
Homer and Marge remember the ups and downs of their marriage through a series of flashbacks, including the time they each began flirting with guests at a glamorous party - a situation that led to a food fight and an unexpected swim in the pool.
E's new client Charlie gets his pilot script picked up, but the studio wants to cast E's arch-nemesis, Seth Green. Vince confronts Verner, the director of "Smokejumpers," who tells Vince to work on his bad habits. To help impress Babs, Ari and Lloyd give Andrew a Hollywood makeover.
Tommy blackmails Mayor Panzarella into supporting the waterfront development but runs into opposition from a community group organized by Michael. Freddi Cork is forced to take a legitimate job as a car salesman. Eileen's pregnancy costs he a chance to advance. Declan begins his investigation to statehouse corruption as the disappearance of Federal Attorney Franklin draws attention away from his efforts. Rose begins to learn the joys of managed care.
The team re-opens the case of a 12-year-old boy who died in 1969 when the retired detective who originally worked the case receives a new clue -- a toy rocket bearing the victim's name.
Steve plots revenge after girlfriend Debbie loses a very dirty election for class president. But it backfires badly.
Out for a ride along the river, Amy comes across an RCMP officer desperately trying to save a young boy from drowning. Scott misinterprets Nick Harwell's polo match invitation to Lou as a date. Mallory seeks Jack's advice on how to deal with her love life.
Miley is riding high when she begins Drivers' Ed, but she comes crashing down to earth after she learns that the class is not the easy ride she thought it was.
Sam shares a secret with Sookie; Lettie Mae and Tara celebrate; Jason and Amy debate what to do with Eddie; Bill faces a harsh penalty.
Tommy and Julia celebrate their wedding anniversary in a magical way while Justin and Rebecca get spooked about their own romance, and Kitty's neuroses endanger the McCallisters' shot at adoption.