The team is called to Walpert's Chocolate Factory, the site of the world's largest chocolate bar, when it turns out there's more than chocolate in the bar. Elsewhere, Cam is disturbed when Michelle chooses a college whose reputation is not for academic excellence.

When Dean Pelton starts checking class schedules, he discovers that Jeff has listed a class that doesn't exist. Abed and Troy build an elaborate blanket fort.

The sky is falling or at least people are. The CSI's try to figure out if it was murder or sucide after a man is dead after falling from a hotel. Across town, a elderly woman falls through her table and her husband dead in the shower. The only two witnesses to the crime are an incooperative cat and a parrot who pleads the fifth.

The residents are on their own with the dreaded night shifts while the attendings go out to play to celebrate Derek's grant for his clinical trial.

Keeping the basement rodent-free drives Charlie to the brink. The gang throws Charlie a surprise party.

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Penny asks Leonard to lie to her father, while Howard, Raj and Bernadette pull an all-nighter at a telescope.

Joseph Gobbles shoots Jay the Intern, and Salvatore Giunta credits the bravery of American troops.

Episode info coming soon ..

It's high-school reunion time, and Andre is looking forward to basking in his success while Ruxin wants to show off Sofia. Meanwhile, Pete needs a name for the new Last Place Trophy and everyone learns the history of the Shiva blast.

Patrick Jane accepts the help of a local astrologer, Ellis Mars, to solve the puzzling case of a triple homicide that involves two policemen and the fiancé of an EMT worker.

Michael tries to save Ryan's company by encouraging co-workers to invest. Meanwhile, Dwight has big plans for the office at Thanksgiving.