When Raj is asked to create a message in case a NASA mission discovers alien life, the guys fight over what he should do. Also, Penny is torn between auditioning for a movie or keeping her successful pharmaceutical sales job.
Watch The Big Bang Theory: 8×21 on 123movies. The Big Bang Theory: 8×21 release in . in the year is one of the best movies to stream online with English and Hindi Subtitles.Apr. 16, 2015