Kitty has been such an attention hog these last few weeks that you may have forgotten that Sarah has children, but don't worry this week she is back at her maternal best --Picking up single dads at Paige's science fair. But as a single mother to an angry tween, she can't handle the science fair alone and has to call in the uncles to do the hard stuff. What? She's a girl.

Scotty and Kevin are making progress at their own science fair. But it turns out that blastocysts don't develop into embryos on competitiveness alone. Know what else doesn't thrive on competitiveness alone? Science fair projects. Especially those that become petrie dishes for Walker neuroses. Basically, Kevin's uber-competitiveness and Justin's insecurities cause the collapse of Paige's mile-high fruit salad battery, but Sarah gets the charge. It's always the mother's fault! But for all Sarah's tween trouble she gets to flirt with a divorced dad. And if Sarah watched a little more Sons of Anarchy she would know to be very cautious around this guy.

Justin's academic advisor is a dick. Granted Justin is most likely the worst student he has ever had in his precious program, but where's the stodgy old dean's love of encouraging academic growth? Anyway, being an ass trickles down and Justin is back to being a dick to Rebecca in no time. She in turn is on track to gain 90 pounds during her pregnancy. But a chance encounter with a four-eyed science nerd gets to the root of Justin's medical school woes: He's not mentally challenged, he's learning disabled! Guess I'll have to come up with more politically correct insults for him. And I bet that advisor will feel like a real ass.

In other news, Simon is back. Apparently he skipped town for six weeks, but he didn't cash Nora's check. Although she did cancel it before he could try. But that doesn't mean he's not lovable! And creativity counts for something, right? And his excuse for being AWOL is a thing of beauty. He managed to stitch together a tale of bone break fever, an emergency trip to the jungle, corporate fraud and a mosquito bite. It's a tale that even Nicholas Sparks would love. Nora sets herself up to look like a sucker, but she is not nearly as much of a sucker as we all think. She gets her big revenge and with Sarah and Saul as witnesses, she bids him a not very fond farewell.

You know how Holly wanted to give Ryan a free pass last week so long as he confessed his emotional turmoil. Well all the anger that was eerily missing last week is back with a vengeance. She's all ready to haul him to jail herself until Saul reminds her that Ryan saved Kitty's life. Clearly he bought himself a get out of jail free card. Holly's can't really stomach this stupidity, so she does the only thing she can do in this particular plot arc: call Dennis York. She is ready to sell her shares of Ojai. And when she asks an exorbitant per-share sum and he says yes, they both walk away from the negotiating table making Mr. Burns happy sounds. But Holly's not as eager to get the hell out of Ojai-ay-ay as one would think. She thinks Dennis's offer is too good to be true and she won't rest (or sell) until she figures out his angle. Also, she can't leave Ojai, because then she would have no purpose on this show whatsoever.

Also, Kitty is still alive.

But the weirdest thing about this episode is that it is directed by Dr. Kerry Weaver. What is even weirder is that after some rapidfire IMDB-ing, it turns out she has apparently directed six episodes of our beloved drama (including the one where Kitty almost cuckolds The Senator with someone far, far less attractive). I mean, sure, ER is cold in the ground, but how the heck did she end up directing THIS show? It's not even on NBC.

Are the Walkers the worst TV family of all time? Find out. And check back soon for the full recap.