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Sheldon wins a National Science Foundation grant to go on a three-month expedition to the North Magnetic Pole to detect magnetic monopoles and prove the validity of string theory. After some hesitation, he decides to go, and wants Leonard, Howard and Raj to join him; although initially reluctant, as it requires spending three months locked in a cabin with Sheldon, they agree. To prepare for the cold weather, Sheldon asks Penny to give them access...

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