Alex and Anna have been told the sex of their child and have great problems with agreeing names. The case doesn't get any easier when Margaretha settles in. Fredde thinks he can change diapers more often than Mickan. An old childhood friend of Alex appears and wants to resume contact, something Alex does not want.
The Dudesons do a promotional tour in America and meet Nitro Circus.
When a promising female tennis star loses her scholarship, Susan gives Beth and Dylan the challenging pro-bono case -- which questions the player's personal identity -- while Liam and Malcolm are pitted against each other.
The designers must create a look to be worn by Heidi Klum on the cover of Marie Claire magazine. They have $150 and one day to complete the challenge.
It's Valentine's Day, and the doctors must treat dozens of injured people after the roof collapses at a popular romantic restaurant; Derek tries to manage his busy schedule as Chief of Surgery; Meredith wrestles with her new duties as the Chief's wife; and Mark and Callie team up to convince Sloan to do the right thing for her baby.
Liz schedules a root canal to avoid feeling lonely on Valentine's Day; Jack woos an attractive and successful TV host; Jenna's stalker loses interest.
Archer must rescue Lana from the clutches of Skorpio, the infamous arms dealer. Meanwhile, Cyril fears not only for his girlfriend's life, but her succumbing to the seductive nature of Archer's heroics.
Ash and company encounter Barry and Paul. Barry and Ash have a battle that's interrupted by Team Rocket with a new plan to take their Pokemon.
When Leslie hears her mom's story about an old flame, she and her boyfriend Justin track him down and reunite them on Valentine's Day. Meanwhile, Andy and his band are nervous about playing a gig at the Senior Center.
Castiel helps Sam and Dean hunt down Cupid on Valentine's Day after townspeople start to kill each other for love. However, after Cupid tells them he's innocent, they discover Famine, one of the Four Horsemen of the Apocalypse, has arrived in town.
As Valentine's Day finds Jeff struggling with his feelings for Britta and Professor Slater, Pierce and Troy are wrongly blamed for a prank.
Cook is in prison after what happened at the party. He's told by his lawyer that he has no choice but to plead guilty... but Cook isn't willing to accept responsibility.
Stefan helps Elena and Bonnie out of a dangerous situation. Jeremy asks Anna to a party in the woods, unaware that she has her own reasons for wanting to meet him there. When Stefan, Damon, and Elena work with Bonnie and Grams to open the tomb, everyone is shocked by what they discover.
When a member of Cho's former gang, the Avon Park Playboys, is found murdered, Patrick Jane insists on helping Cho with his off-the-books investigation.
When Michael's old acquaintance Larry shows up unannounced, it is up to Michael to clean up his mess. Meanwhile, Michael's brother Nate shows up with his new wife Ruth.
Sabre's CEO wants the Scranton branch to have one manager, and Michael voluntarily steps down and lets Jim become the boss when he finds out that salespeople make more money. However, he soon comes to regret the decision.
In one of the most physical reward challenges ever played, injuries threaten to send two castaways home before the first challenge is completed.
When Naomi refuses to help plan Maya's wedding, Sam convinces Violet to help her. Meanwhile the tension between Addison and Sam deepens when they treat a suicidal patient and Cooper and Pete treat a girl with a questionable bite mark.
Nikki's father is accepted for a job up in Iqaluit, and Nikki doesn't want to go, so Jonesy gets Caitlin to tell Mr. Wong that his interview was moved to Grind Me at the mall, and Jonesy pretends to be Mr. Wong at the real interview, when he tries to do everything he can to make him not get the job. It doesn't work, however, because he gets the job anyway. So Nikki has to convince her parents to let her stay but she has to find a place to stay first. Jen's mom said she could stay with them for a semester but Nikki's parents don't want her living under the same roof as her boyfriend, so Nikki and Jonesy pretend to break up so she can stay with them. But Nikki finds out that living with Jen is too hard. Meanwhile, Jude loses his house keys while his parents are away so he temporarily lives in the mall, where he is repeatedly hounded by Ron the Rent-a-cop.
When Nikki's friends do a going-away party at Grind Me for her, Nikki's parents said they would stay as her father would keep his old job, but Nikki objects and admits that it should be time for her to "grow up" and that she should finally make some self-sacrifice after everything that her parents have done for her. So she agrees to move up North to Iqaluit so her father can get the job. Upon departing, Nikki attempts to call Jonesy on the cell phone just to tell him that she doesn't want to break up with him, and Jonesy wishes the same. The gang says good bye to Nikki and tell her they'll talk to her soon, as she bids them one final farewell. It finishes with Jonesy saying "Maybe everything will be okay after all..." The episode, and the series ends, with the camera zooming out to a wide shot of the mall food court as all the supporting characters in the show are seen walking through.