IMDB Rating: 8.4/10 from 542,476 votes
Director: Chuck Lorre
Synopsis: Watch The Big Bang Theory Season 2 Episode 21 online free. In The Big Bang Theory Season 2 Episode 21 Putlocker Full Episodes, After being dumped by Leslie, Howard heads to Las Vegas with Leonard and Raj. Meanwhile, Penny is forced to take in Sheldon after he locks himself out of his apartment.