Robbie resorts to using Thornoids in an attempt to impress a girl at school.
Julia's old mentor for her bohemian art school days in New York unveils his nude portrait of Julia.
Dana's been dumped, Frank burns one of Carol's customers, and J.T.'s limo date backfires.
Rose is enamored with a hotel guest who looks exactly like Charlie; Blanche is horrified to discover her visiting son Matthew wants to pursue a career as a comedian.
Deputy Max goes undercover when a response to her personal ad leads her to believe that she is being targeted by a serial killer known as "Cupid."
Lonely and depressed after breaking up with Ted, Laura grants Urkel a few bittersweet hours of bliss as her valentine; Gwendolyn charms Richie with "yucky goo-goo stuff"; and Harriette and Carl search for admirable qualities in each other.
Matlock is planning a birthday fishing trip with Leanne, but when he is called up for jury duty it puts a damper on their trip. Despite his convictions that no lawyer would want him on their jury, Matlock ends up being juror number six, and while everyone else on the jury wants to convict Travis Spaulding of the murder of his wife, Matlock alone thinks they need to take a closer look at the evidence before sentencing the man to death. Unfortunately, tempers flare in the jury room as the jurors soon become divided between guilty and not guilty.
With an opening in a quartet, Helen wants to try out but her cello is on the bottom of the ocean. She gets a second job to purchase a new cello but things don't go as planned. Lowell, Faye, Roy and Antonio audition for a play.
Rollins represents a man whose drunk driving caused the accident that left his pregnant girlfriend in a coma, and who is now suing to keep her on life support until his unborn child can reach full term; Salerno discovers that Morales's gangbanger client has literally left him holding the smoking gun, and leaks the information to the district attorney's office, leading Morales to be jailed for contempt of court when he refuses to admit that he has the weapon that will convict his client; Mullaney's chain smoking, hard-drinking father comes for a visit bearing bad news; Markowitz tells Mullaney to offer his attackers a plea agreement to end the case, but Kelsey intends to press on by filing a civil suit for loss of consortium; posing as the babysitter, Salerno kidnaps Lucy Morales.
With Martin & Gina now broken up, Pam sets a lonely Gina up with her cousin Leon, who is a minister struggling to keep his fleshly desires under control. Meanwhile, Cole and Tommy take a despondent Martin to a nightclub hoping to cheer him up. While there, he meets a beautiful woman named Nicole, and they begin dating. By coincidence, the 2 couples happen to meet at a restaurant during dinner. Martin is extremely jealous of the fact that Gina is out with another man, and decides to 'help' him out when he begins choking on his food.
Martin and Gina fight over Gina's unusual Valentine's Day gift, and escalates out of control until they finally break up. When they try and reconcile they discover that maybe they are just too different from each other.
Sketches include: "Bill Cosby's Condom Commercial" (repeat from Season 3, episode 12) "Homey D. Clown's Parole Romance" (repeat from Season 2, episode 2) "Ejector Bed" (repeat from Season 2, episode 16) "Velma on a Blind Date" (repeat from Season 2, episode 13) "Ugly Woman's One Night Stand"
Frasier is upset when he hears that Lilith now officially want s a divorce. The staff at Cheers decide to hold a ""happy divorce"" party to cheer him up, and at the party, whilst Woody drinks too much and becomes a mean drunk, Frasier gets drunk. Afterwards Rebecca drives him home, but they end up in bed together. However, first the gang pop around to check Frasier is OK - and to watch ""The 3 Stooges"" - but just when they leave, who should show up but Lilith, who has escaped from the eco-pod...
Chief Wiggum's son has a crush on Lisa after she gives him a Valentine out of pity.
Elaine's prank leads a reporter to believe Jerry and George are a gay couple.
Tim refuses to ask for directions on the way to Shelia's wedding.
Jack and Dylan begin living on a yacht, where they are constantly kept under surveillance. Jim does not want to dissolve the trust, but finally gives his approval so that Dylan can have a new life with his father. Christine accepts Jack's marriage proposal. Dylan and Kelly sleep together. Jack tries to confess something to Dylan, but a man interrupts them and warns Jack that he is breaking their deal. A bomb is attached to Jack's car during the night. Dylan receives a phone call from Kelly just as he is about to move the car, so Jack agrees to do it. As Dylan hangs up, he turns to see the car explode. Jackie tells Kelly and David that she has to sell the house. She receives an offer, but decides to hold out for a while. Music: ""All the Way to Heaven"" by Jody Watley; ""Tutti Frutti"" by Little Richard (#17, 1956); ""Take Me Out to the Ballg
Alison remains irritated about Billy's relationship with Amanda. Jo's husband offers her a $50,000 divorce settlement, but she wants to turn it down because of her pride.
Kwai Chang and Peter encounter a gang of thieves during a wedding reception.
Two expert thieves, known as Fire and Ice, has come back in time, and when they use a paralysing beam from the future, no guard can stop them. Soon Lambert is on to them, but even he doesn't have any protection against their weapon. And if Lambert sends the thieves back to 2192, he may never find Sahmbi.