When human remains are found alongside the railroad, Brennan and Booth are called to the case. The bones belong to Levi Yoder, a member of the Amish community who disappeared two months ago, during his Rumspringa, or exploration of the outside world. Brennan and Booth discover that Levi was a piano prodigy, and their investigation leads them to believe that his extraordinary talent may have lead him to an untimely death. Meanwhile, Cam copes with the stress that comes from being a new parent.

Jeff joins Professor Whitman class for an easy A grade but then realizes how much work he needs to put in to pass. Britta helps Abed fulfill his dream.

The son of a notorious killer is arrested on suspicion of murder, and the CSI team must overcome their natural prejudices against the boy's antecedents in order to track the true culprit.

Several weeks after her near-death experience, a recovering Izzie returns to work. Meanwhile, nervous that there will be layoffs in the hospital in the wake of an announcement from the Chief, the Seattle Grace residents compete to survive the cuts, including Cristina, who attempts to work alongside Arizona in pediatrics. And Bailey and Alex's patient's already complex case is further complicated by her schizophrenic son.

With a shantytown taking shape outside, Mac and Dennis try to keep Paddy's going in tough times. Meanwhile, Frank and Dee start a family business.

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Leslie gets to judge a beauty contest, but ends up having conflicting opinions on "the ideal woman" with the other judges. While on a date with Mark, Ann learns Andy has been living in the pit.

Dean refuses Sam's efforts to help him battle the Devil, and then wakes up to find himself five years in the future, in a wasteland where Lucifer has begun his endgame by unleashing a virus that transforms humans into zombies.

Francis Collins informs Stephen that it's going to take time for stem cell research to give him crab claws.

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Lisbon and the team work the case of a State Senator's murdered intern, while Jane simultaneously tries to find out what new information Bosco has uncovered on the Red John case.

David Wallace comes bearing the news that not all the staffers will receive a raise this year. Jim pushes Dwight to the limit and causes him to form office alliances. And Pam decides she wants only cash as a wedding gift.

Elena asks Stefan to escort her to the town's annual Founder's Party. Vicki gets Tyler to ask her to the party, then accuses him of trying to hide their relationship from his family. Zach reveals a useful family secret to Stefan. At the party, Damon tells Elena a story about the Salvatore family's past, leaving Elena with questions that Stefan refuses to answer. Finally, Stefan takes action to get Damon out of his life for good.