The staff celebrates Leap Day, with Liz helping Jenna try to bed a billionaire, Jack relishing an extra day of business, and Tracy needing the writers' help to use up a Benihana gift card.

The Hollywood Round of the competition comes to a dramatic end when Randy, Jennifer and Steven reveal this season's remaining semifinalists.

Sheldon's life is turned upside-down after his barber gets sick. Meanwhile, astronaut training causes Wolowitz to rethink his decision to go into space.

Leslie realizes that the department has forgotten Jerry's birthday and decides to throw a party for him at a special location. Meanwhile, Tom is flabbergasted when he finds out Ann doesn't share his taste in music.

Rob plans a romantic weekend at home for him and Maggie. But after Rosa kicks Fernando and Hector out, they move in with Rob and begin enjoying the romantic activities he planned for Maggie.

As Adele's condition continues to deteriorate, Richard considers altering their living situation; an explosion at a local coffee shop results in a busy day in the ER for the doctors; Callie takes Meredith under her wing by helping her study for her boards; Lexie joins Arizona and Alex in peds, as they continue to care for intern Morgan's premature son; and when Jackson snaps at a patient, Mark encourages him to find ways to relieve his stress. Meanwhile, Cristina lets her suspicions get the best of her.

Andy forces the remaining Scranton staff to work overtime to make up for all the people in Tallahassee, where Dwight and Packer vie to be Nellie's vice president.

Reese and Finch discover that their newest Number is a Wall Street prop trader who may be in involved in a multi-million dollar scam that will rob thousands of investors of their life savings.

Dr. Jack Hodgins from the Jeffersonian team seeks Walter's help to find evidence that could expose extraterrestrial activity. Meanwhile, Timo and Willa struggle with their arranged marriage proclaimed by the head of their gypsy family.

Angela Lindvall takes the designers to UN headquarters, where they have to find inspiration by a flag of their choice. Catherine Malandrino is the guest judge.

Day three of the month-long alligator season in Louisiana finds the hunters working at a frantic pace to fill their tags. King of the Swamp, Troy Landry and Master hunter, Junior Edwards are following identical strategies; by putting their sons on a second boat with a specific mission: Catch Big Gators. It's a mission the new captains won't find easy to fulfill. Meanwhile, in Myrtle Grove, Joe LaFont and his stepson Tommy are back on the water. With more tags than ever this season, they're on track to make big bucks until... Joe sustains a potentially season-ending injury. In Bayou Pigeon, newcomers Austyn and Blake are trying to earn their way into the alligator business a few tags at a time. With five tags in hand, they set out to prove to their buyer that they are the next generation of swamp legends.

A moment of weakness with his uncomfortably enthusiastic neighbors leads Chris to agree to host a joint first birthday party for Amy, and Reagan to accuse him of being a pushover. Ava takes it upon herself to take the birthday party to the next level, while Nancy sees this as an opportunity to look for a man.

Sam tries to take care of his sister, Corinne, but her mental condition makes that nearly impossible; Sheldon learns that Amelia has life-changing news; the flirtation between Addison and Jake continues, and Cooper rejects Charlotte's suggestion to seek outside help with Erica's care.

Jane is reunited with his former nemesis, cult leader Bret Stiles, when the head of an anti-cult activist organization is murdered.

Ray's younger brother is in trouble with a crooked sheriff in the West Virginia backwoods, and Archer must come to the rescue.

J-Woww confronts Pauly's stalker; Snooki's boyfriend denies her affections, prompting her to pursue Vinny; the roommates go fishing despite their fears of a shark attack.

Gary and Joel's plans to hook up with girls at the school dance are threatened by an outbreak of head lice.

Paul Rudd

Dhani Harrison

Tina has a problem... down there. After being diagnosed in a cringe-worthy scene by almost-doctor friend Eric, she must visit her ex-boyfriends to tell them the burning news. Worst of all, she'll have to go see Brett, which will permanently "off" their on-again, off-again, relationship. Jason finally finds work as a cleaning person, but when he starts hooking up with his sexy, older boss, he starts to wonder if he's getting paid for more than just his housekeeping.

Placido Domingo

Jason still can't find a job and is getting desperate for cash; Tina has a job, but is also broke due to irresponsible purchases, i.e., high-waisted skinny jeans. So broke in fact, she's evicted from her apartment. Desperate for money, the pair makes a pact that they will not turn to their respective "safety nets" for help. Sticking to the promise, Tina enlists Stacey to play lawyer, but she's disappointed when Jason punts entirely and instead chases a cute French girl who promises, "a different way to live".

K'naan featuring Nelly Furtado

Meredith Vieira, Jackson Murphy, Redlight King

Malin Akerman, Jon Ronson

The Honourable Miss Phryne Fisher disembarks the Orient at Victoria Dock, returning to Melbourne after years abroad. Almost as soon as she checks into the Windsor Hotel, Phryne is embroiled in mystery: poisoned husbands, cocaine smuggling rings and illegal abortionists - not to mention erotic encounters with the handsome Russian dancer, Sasha de Lisse. Her adventure reaches its steamy end in the Turkish Bath Palace off Little Lonsdale Street.

Graham is joined on the show by Mark Wahlberg and Minnie Driver.