Allison investigates the supposed suicide of a girl who was dating D.A. Larry Watt's son Greg. When the girl's body is found in a ravine, new evidence is presented that implicates the defense attorney. Meanwhile, Joe is concerned about one of his colleagues after Allison has a premonition of the colleague having a heart attack.
When the CSIs find a woman swallowed whole and killed by a gigantic snake, they uncover a covert drug smuggling operation. Evidence leads Horatio and the team to a drug smuggling operation where large snakes are suspected of be being used to bring illegal drugs into the country to avoid detection by customs. However, when Horatio finds that Clavo Cruz, a nemesis of Horatio's who hides behind his diplomatic immunity, may be behind the operation, the team must find a legal way to put the criminal behind bars. Meanwhile, Wolfe must find the truth when two women each claim that they are the real victim of identity theft and the other is the culprit.
Marie is astounded when Franks puts salt on her homemade lasagna, leading her to believe that she's lost her touch in the kitchen. However, Ray and Robert discover that the problem is Frank, who has lost his sense of taste.
Sam is over the moon about hosting the "whale of all whales" - a billionare (guest star Dean Cain) she's hooked to stay at the Montecito. With her hands full, she tosses her other clients onto Mary and Delinda. Things get out of hand when Mary's billionaires turn out to be cheating the horse racing system requiring Danny to fly up to come to her aid. Meanwhile, Sam falls apart when she realizes that the billionare is her husband, whom she's been separated from for seven years. Elsewhere, Ed is slapped with jury duty on Valentine's day and deals with the wrath of Jillian (Cheryl Ladd), who thinks he's avoiding the special day on purpose. Despite his efforts to get himself off of the hook, the judge refuses, leaving Ed to have to trust Mike with manning the homebase.
Lacey gets the job of convincing a good-looking young doctor to set up shop in town. But Lacey and the rest of Dog River get less than they bargained for when the doctor arrives. Then Hank has to find a place to crash while his house is getting fixed, setting off a chain reaction of house swapping as people try to avoid living with him. Finally Brent is annoyed when he inadvertently winds up with what might be a counterfeit 100 dollar bill only to find it has a positive affect on his life.
Just as they've become somewhat comfortable with their new relationship, Andy and Amanda receive word that Amanda's husband, John (guest star Jason Beghe), has experienced a miraculous breakthrough in his recovery. Meanwhile, Amy learns the truth about why Madison really left town, an elated Ephram is offered an audition at Julliard, Hannah questions whether she's emotionally prepared to take the test for Huntington's Disease, and Bright is accused of sexual misconduct in the workplace.
Kelly struggles to adjust to life in rehab, and frequently calls home requesting various personal belongings. She wants to leave, but Jack urges her to tough it out. Jack celebrates both his birthday and a year of sobriety. Kelly arrives home and becomes frustrated by the curfew and other rules she must follow. She clashes with her mother often, and accuses Sharon of messing with her head when she expresses her concerns.
The streets of Glenoak are alive with the sound of music as the Camden family breaks into song for a very special Valentine's Day musical episode. Classic songs (""Love Is Sweeping the Country,"" ""You Were Meant For Me,"" ""Nice Work If You Can Get It,"" among others) are performed by the Camdens. Simon is enjoying having his new girlfriend, Anna, who he just met the day before over at his apartment for Valentine's Day. They both agree to go to Glen Oak, but he decides to keep her away from his family for the time being. Annie displays her unhappiness to Simon in song (along with the rest of passerbys) over his constant dating habits at the promenade as the chorus is going on. Anna overhears this and begins to question Simon and his dating habits as well. Vincent confronts an unhappy Ruthie on the high school bleachers as she's not in the Valentine's Day mood and is upset over watching Martin practice with his team and Zoe blowing kisses at him. Also, Lucy and Kevin dance to ""You Were Meant
After Dee Dee learns that her mother's co-star in a new play is engaged to Dee Dee's idol, esteemed attorney Maxine Shaw, Dee Dee sees an opportunity to atone for a bad interview she once had with the woman. However, Dee Dee believes she has lost her chance after Big Dee Dee (who had to finance the play to ensure she could star in it) gets Max's beau fired because she fears he will take attention away from her. Meanwhile, Mona must find a way to rein in her co-workers after Kai is delayed and leaves her in charge of a company retreat at a resort.
It starts when Breanna, Spirit, and Arnaz standing in the hallway at the school. Arnaz auditioned for a ""Battle Of The Bands"" competition and is waiting until the scores get posted. Then A-Train (Lloyd from the INC) appears and says that he will loose against his group. Then Arnaz makes a joke about his name and A Train says that at least he has a nickname. Spirit laughs which catches the eye of A Train and he asks what is Spirit's name. Meanwhile, Duane tells Flex that he wants to marry Candy. Flex doesn't like the idea, they just got back together. They have a little minor ""argument"" which leaves Duane walking out the apartment. At the practice of Arnaz's band, Breanna gives him and his band new outfits and he doesn't like them. He says that they look like ""hip hop butlers."" Spirit states that she was doing a friend a favor. So Breanna and Spirit go to A-Train's group and gives them the outfit they made for Arnaz which gets him jealous. Meanwhile, Flex and Duane go threw ""friends cou
As Valentine's Day arrives, William is very excited because he and Joan have been dating for three months and can now sleep together. Although William is anxious to get to it right away, Joan insists on planning a romantic evening so that she can finally have a good Valentine's Day. William agrees to go along with her wishes. However, their efforts to consummate their relationship prove so uncomfortable that they reluctantly come to the realization that they are better off as friends. Meanwhile, Toni, Maya and Lynn go out to dinner together for Valentine's Day and reveal their deepest, darkest secrets.
While out with Tara, Alan ends up causing a bar room brawl and as a result, becomes arrested for conspiracy to commit assault and battery. Shirley and Denny represent a man whose steakhouse is being put out of business because the public wants to ban red meat for fear of Mad Cow disease.
When a prison guard is murdered, Eames and Goren investigate, only to discover they've riled the feathers of Mike Logan, a Staten Island police officer who happens to be dating the nurse at the prison. Logan joins the duo to find out exactly what is happening at the prison.
It's Valentine's Day on Wisteria Lane, and love is all around (sort of), as Susan looks forward to a romantic date with Mike, until she learns a surprising fact about her favorite plumber. Meanwhile, after reconciling their relationship, Bree discovers something new about her husband Rex when it comes to his sexual needs. Lynette's neighbor accuses the Scavo twins of thievery as Lynette tries her best to handle the situation. Lastly, Gabrielle's work adventures continue as she gets a gig as a mattress model.
With the company in dire financial straits and the Bluths no longer the primary shareholders, Michael must turn to old family friend "Uncle" Jack Dorso for financial assistance. Uncle Jack, however, wants something in return.
Bart fakes his own kidnapping to get out of being punished for going to a rap concert, but the ruse goes too far when Milhouse's father is implicated as the kidnapper and Chief Wiggum sees this as an opportunity to make a name for himself as a competent police officer.
When Lois catches the boys vandalizing a trashy billboard for a strip club, Malcolm alters the vandalism into a women's rights protest, which sparks a colossal media circus. In no time, feminists, conservative religious groups and national new reporters descend on the scene. After Hal grants a TV interview, a woman from his past turns up at the faux protest; and Reese, inspired by the giant billboard stripper who comes to life in his dreams, gives an impassioned speech about the objectification of women.
Samson runs into an old acquaintance when the troupe crosses paths with another carnival. Rita Sue's business decisions give Stumpy fits. Justin and Iris struggle with a tough sermon. Libby's honor is in need of defense.
When Judith decides to take a vacation, the brothers have to take care of Jake during the week. Alan finds it challenging, and even forgets to pick up Jake from soccer practice. When Alan finds out that he has to go to the I.R.S. because they're auditing him, he forces Charlie to take care of Jake, and Charlie doesn't do any better then Alan.