Episode Titles: Monopolar
You are viewing a list of 1 The Big Bang Theory episode featuring "Monopolar" in their title.
Season 2, Episode 23 - The Monopolar Expedition
Aired May 11, 2009
When Sheldon is offered the opportunity to conduct research at the North Pole, he invites the rest of the guys along with him. The impending three-month expedition forces Penny & Leonard to reconsider their feelings for each other.