![The Big Bang Theory Season 12 Episode 20 The Big Bang Theory Season 12 Episode 20](https://pics.soap2day.day/t/p/w185/ooBGRQBdbGzBxAVfExiO8r7kloA.jpg)
The Big Bang Theory Season 12 Episode 20 123movies
Koothrappali is worried people won’t take him seriously in his own field after publishing a paper that suggests he may have discovered alien life. Also, Leonard wants to be the principal investigator on a plasma physics study.
Views: 11598
Serie: The Big Bang Theory
Director: Mark Cendrowski
Guest Star: Angela Lin, David Theune, Elijah Isaiah Cook, Joshua Malina, Rati Gupta
![The Big Bang Theory Season 12 Episode 20](https://pics.soap2day.day/t/p/w300/6EwGVgvBRPX6huHhj80whNK3aXD.jpg)
![The Big Bang Theory Season 12 Episode 20](https://pics.soap2day.day/t/p/w300/zfys1wgchnU0BqcfOKf9LbOSDw6.jpg)