Poster of Cast and Crew in The Big Bang Theory - Season 2 - Episode 23 - The Monopolar Expedition

The Big Bang Theory - Season 2 - The Monopolar Expedition (Episode 23)

Plot: The guys' plan to work over the summer at the North Pole makes Penny revaluate her feelings for Leonard.
Episode Aired On:
Monday, May 11 2009
15 years ago