Jules is miffed when Grayson (who has an ulterior motive) calls her "predictable"; Ellie frets that little Stan is turning into a "devil child," or even worse, could grow up to be like Laurie; and Travis likes his new off campus housing, until Bobby tries to convince him to take dog Travis in.

In honor of Valentine's Day, Will challenges the New Directions to find and perform the world's greatest love songs. Meanwhile, Rachel's two dads Hiram and LeRoy Berry pay a visit to McKinley High.

Raylan races to save Dewey Crowe from a gang of vicious organ harvesters. Boyd faces off with a new adversary.

A man attempts to show off for his date, getting picked last at a slave auction, and two men hide from soldiers during WWII in Germany.

Dave welcomes actress Viola Davis, Sports Illustrated Swimsuit Issue Cover Model Kate Upton, and musical guests Mark Ronson and Erykah Badu.

Sigrid learns some surprising news, Frank's deal sours when his partner's son converts to Islam, and Geir stumbles on a clue to Frank's identity.

When a Navy captain is found dead with an unusual costume hidden under his uniform, NCIS uncovers a secret society of real-life super heroes and must track down the villain.

With Assistant Director Granger critiquing every move, the NCIS team must track down a chameleon-like killer who has evaded law enforcement agents, including their very own Special Agent G. Callen, across several countries.

Jess convinces Schmidt to help her land a stranger on her first Valentine's day without a date. Nick spends more time with Julie's Assistant than Julie, ruining his special day plans.

Julia struggles to detach herself from getting too involved in Zoe's life, Kristina reacts to Amber and Bob Little's plans to go off on a weekend business trip together and Max tries to use his Asperger's as an excuse to get out of P.E. Meanwhile, Sarah and Mark's plan to have a baby elicits an unexpected reaction from Drew.

Everyone is really worried about Kelly. Marty is still grieving about the loss of the baby, Kelly is punishing herself physically and mentally and is spiralling out of control. Karen ends up making a bet with Dom. Avril becomes worried after she sees her colleague Calum dispensing incorrect medication at the chemist.

Two players visit home with their trainers in tow, and their weights alone count at the weigh-in. Elsewhere, the teams compete in an obstacle course in order to receive letters from loved ones for Valentine's Day; the players at the ranch must fend for themselves, though one contestant turns to nutritionist Rachel Beller for help preparing a special meal.

Catholics oppose the Obama administration's birth control mandate, a Seattle woman marries a building, and William Broad considers the effects of yoga on the mind and body.

Actress Betty White pops by for Valentine's Day; interview with singer-songwriter Joss Stone; Joss Stone performs with musician and record producer David A. "Dave" Stewart.