Kevin Brief

Suffering from a case of physicists block, Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.

Rachel and Phoebe go out for a night together. After Rachel impulsively gives a handsome restaurant patron her telephone number, she worries that he'll call when Ross is in their apartment. While the women are away, Phoebe's boyfriend, Mike (recurring guest star Paul Rudd), helps Ross baby-sit for Rachel's baby--and the guys desperately try to find something in common to talk about. Also, still working in Tulsa, Chandler returns to New York to visit Monica, but he must hide from Joey after rejecting his offer of free basketball tickets.

After Frasier and Niles' New Year's plans fall through, they take a riotous road trip with Martin in his Winnebago.

While House and his team scramble to discover what’s causing brain and kidney dysfunction in a pregnant woman, Vogler (guest star Chi McBride) is on the warpath to get House fired. House diagnoses his pregnant patient’s illness, but now she and her husband struggle with an emotional and heartbreaking choice: to save her life, or that of her unborn child. Meanwhile, Vogler sets up a board meeting to get rid of House, but when Wilson objects, Vogler lashes out against him and shocks Cuddy and the rest of the board with his decision. Finally, Cuddy takes a stand against Vogler (will she be next?).

As Aria, Emily, Hanna and Spencer try to keep their distance from each other, each girl looks to distractions to help fulfill the "separate time" request from their parents. Aria channels her inner artist and signs up for a pottery class at Hollis College. Not only does the class qualify as "separate time," but it also gives her an excuse to see Ezra on campus, so there are benefits on both sides - that is, until she finds out Jenna is also taking the class. Emily stays focused on her swimming career and how that could help her stay in Rosewood, but when she doesn't get the solid commitment from Danby University, she comes up with a way to fudge things to convince her mom to stay. But will goody-two-shoes Emily be able to go through with her sneaky plan? Feeling like the only one who doesn't have a hobby, Hanna turns to Lucas to see if she can join the yearbook staff to fill her time.