Clark is once again exposed to red kryptonite, and his "other self" goes on a rampage of sorts on Valentine's Day, kissing the women he's most attracted to and expressing his uninhibited feelings for the various relationships around him.
In Memphis, Tennessee, a woman is brutally stabbed and left for dead in the street. When a witness comes forward with the license plate number of a van she saw driving from the scene, the homicide team must employ unique tactics to lure the suspect in. In Dallas, Texas, Detective Rick Duggan investigates the murder of an elderly man, shot inside his dental clinic. Investigators have little to work with until a woman comes into headquarters with information that seems too good to be true.
Michael celebrates Phyllis' wedding shower by bringing two adult performers into the office, a stripper and Ben Franklin. Meanwhile, Karen confronts Pam about her past history with Jim.
Cassie's family and friends are too wrapped up in their own worlds to notice that she's not eating - but there is someone who cares.
Cory wants him, Meena, and Newt to be on the president’s Reading Benefit show so they can be on television. However, Samantha will not let them. They trick Sophie into joining the band so they can be on the show, but Sophie figures it out and makes them play her song about cats instead. Meanwhile, Samantha tries to convince the President not to do bird calls on television.
Ophelia enlists the help of June and Co. into helping her finish her school film. Meanwhile, Cordoth's Daughter plots to bring 500 kids into the Realm of Barandom so she and her father can be free again. With Ray Ray captured, June ends up trapped in the movie. Ray Ray and Monroe must get June out of the movie so that she can finish Ophelia's movie and defeat Cordoth's Daughter.
We meet the holiday makers who have just arrived at the Benidorm resort. With dysfunctional families, middle-aged swingers and bickering couples it's sure to be a holiday they'll never forget.
Nick and Keppler investigate the bizarre world of the black market sales of body parts after they find a body that has been burned and the organs removed. The rest of the CSI team investigates the death of rich woman who was killed in her own home.
Earl goes for #44 on his list trying to help Pierre, a French foreign exchange student, he made fun of when they went to school together. Earl flies him back to the US and he tries to hook Pierre up with a girl he had a crush on as a child. Meanwhile, newlyweds Randy and Catalina find their marriage changes in ways they would never imagine.
The hospital is seen through the eyes of Dr. Kelso, who befriends an Iraq War veteran. The soldier's stay sparks a political debate among staff members.
Liz wonders if she's actually on a date with Jack as she accompanies him to a birthday celebration for a foreign prince. While at the ball, Liz sees a different side to Jack as he unexpectedly runs in to his ex-wife. Back at 30 Rock, Tracy tempts Pete with a booze- and babe-filled party in the office, while Kenneth tries to keep Pete on the straight and narrow.
Seth and Summer come upon a fortune teller whose prediction makes the two question whether they are truly meant for each other. Ryan gets back in touch with his father (with a little help from Taylor). When the two teens discover a love connection between Frank and Julie despite her pending engagement, a Valentine's competition is sparked between "Team Bullit" and "Team Frank". Meanwhile, with a new baby on the way, Kirsten finds herself dwelling on an old secret involving Jimmy Cooper.
Ash returns to Oreburgh Gym, ready to challenge Roark again. As the battle starts, Ash quickly surprises everyone when Pikachu manages to take down Onix. As the second battle begins, Ash pits Aipom against Geodude. After a long struggle, Ash manages to beat Geodude, and loses Pikachu and Aipom before the real test begins, defeating Roark's newly evolved Rampardos.
Betty has her job cut out for her getting prepared for Mode's huge event during New York City's Fashion Week. Meanwhile, Marc and Amanda can't delay getting their hands on something everybody desires, Christina wishes to create her mark in the design world and Daniel calls for Hilda to grant her sister a hand.
Kovac finds himself in a tense confrontation with Curtis Ames, and Abby must act to protect her family. Meanwhile, Neela and Gates rush to get Meg to the hospital while Sam's new home is soon under threat from fire.
Afro Samurai draws his blade on the reclusive gunfighter Justice. One fights for vengeance, the other for supreme power. When the vicious battle ends, Number One will stand above the dead.
The Panthers prepare for their first playoff game.Coach Taylor gets distracted as he has to come up with a solution to Smash's use of drugs. Tyra and Julie befriend while Riggins bonds with his alienated father.Buddy learns about Jason and Lyla's engagement.
Angie maintains her story that she's pregnant to keep George from missing Carmen. Meanwhile Vic introduces his young and beautiful but not too bright fiancée to the family.