In honor of the holiday, Faye and Melissa throw a girls only anti-Valentine’s Day slumber party for themselves and fellow witches Diana and Cassie. But the night gets wilder than expected when Melissa offers Diana some mood altering “Devil’s Spirit” and the first person Diana loosens up around is Lee, who crashes the party to help Faye achieve her own power. Meanwhile, Cassie is forced to turn to Adam and Jake after she becomes haunted by the spirits of some vengeful witches.
When Sheldon is forced to take his vacation, he goes to work with Amy in her neurobiology lab.
Criss and Liz decide to celebrate Valentine's Day, but they need to buy a dining room table first. Jack entertains his mother-in-law, Diana, as Jenna frantically looks to Pete to fill in last-minute as the producer of her first live performance on "America's Kidz Got Singing." Back at the office, Tracy and Frank try to help Lutz find someone to spend Valentine's with.
While a jury deliberates the guilt or innocence of a defendant on trial for murder, Jane tries to prove she has been wrongfully accused before time runs out. Meanwhile, Summer may have gone too far when she helps Cho make a case against a suspect.
Elena is surprised to receive an invitation to a formal ball, and when Damon and Stefan hear the party is being hosted at Klaus’s newly renovated mansion, they both insist on attending the event with her. Caroline and Matt also receive invitations to the ball from unexpected admirers. At the elegant party, Elena learns of a horrifying plan that could lead to numerous deaths and she must decide who she can trust with her new information. Caroline discovers a side of Klaus no one would have suspected. Finally, after an evening of violence and dashed hopes, Damon finds a new way to cope.
Criss and Liz decide to celebrate Valentine's Day, but they need to buy a dining room table first. Jack entertains his mother-in-law, Diana, as Jenna frantically looks to Pete to fill in last-minute as the producer of her first live performance on "America's Kidz Got Singing." Back at the office, Tracy and Frank try to help Lutz find someone to spend Valentine's with.
Dwight scores a special assignment at Sabre's Florida headquarters. As a result, he and Andy must decide which Scranton staffers will join him. Elsewhere, Pam returns from maternity leave.
The Situation secretly gathers information to bring down one of his roommates -- and for once it isn't Snooki. JWOWW freaks out when Roger disappears and doesn't return her calls.
A hired killer has Harry Montebello in his sights, while Sissi's revelations about Paddy's embezzlement of the family business force a deadly confrontation. Meanwhile, Gary's confession spells trouble for Lola.
Sheila Taormina, an Olympic gold medalist and world-class tri-athlete, begins receiving strange phone calls and letters from an obsessed fan posing as a fellow athlete. Before long, he is following her to competitions around the country and police can do nothing to stop him.
Set against the attack on Pearl Harbor, Gladys’s secret job is exposed, while Lorna grapples with a possible pregnancy and Kate struggles to stand up to the return of her manipulative father.
He put a man on the Moon in the Victorian Era. He criticized the Internet...in the 1863. Jules Verne is the ultimate futurist, with a legacy of sci-fi stories predicting everything from fuel cell technology to viral advertising. The extraordinary voyages of Jules Verne span from the center of the Earth to the surface of the Moon, inspiring art, industry, culture, and technology with an enduring question: Where can science take us?
As Quinn distracts Jamie, Haley searches for Nathan. Clay finally gets answers about his condition. Meanwhile, Julian attempts to get back to a normal life, while Brooke tries to give Tara a chance.
Phil's preoccupation with a business opportunity blinds him to his new partner's inappropriate behavior around Claire. Meanwhile, Jay and Gloria may regret letting Mitchell and Cameron be their temporary house guests when their home is being fumigated.
In the excitement over Emily and Daniel's engagement party, things start to unravel for everyone; Victoria uses Conrad's father against him; Jack gets more involved; Charlotte and Emily both face problems.
Frankie and Mike decide to try a fresh approach to Valentine's Day by having dinner out with friends. But a clueless Mike angers Frankie by refusing to present her with a simple romantic gesture. Meanwhile, Axl can't think of a life-changing moment that's occurred in his life when he's assigned to write a school paper on the subject, Brick is tasked with writing a report on love, and a hapless Sue doesn't understand why her new boyfriend has suddenly turned into a bad kisser.
Alfie is ping pong coach and Vera’s upset with the article. Eddie plans a prank on Mr Sweet. Victor completes the task. Senkhara is furious. Mara & Vera have a hearing about Mara’s claims. Fabian thinks he's solved the task, Eddie’s Mr Sweet backfires.
The team competes in a trauma wound foundation contest then return to the lab, which has been transformed into a jungle, and discover they'll be studying live animals to create something beautiful but deadly.