The Big Bang Theory
The Bachelor Party Corrosion
Season: 9
Episode: 3
Air Date: 2015-10-05
GUEST STARS: Keith Carradine
The guys' science skills are put to the test when they get a flat tire during Leonard's bachelor party weekend in Mexico. Also, the girls force Penny to finally tell her family that she eloped with Leonard.
![4VC9UZmTRALQXCIBpFe9VO2vM3R.jpg](https://snogssite.com/data/tv/EpisodePosters/4VC9UZmTRALQXCIBpFe9VO2vM3R.jpg)
The Bachelor Party Corrosion
Season: 9
Episode: 3
Air Date: 2015-10-05
GUEST STARS: Keith Carradine
The guys' science skills are put to the test when they get a flat tire during Leonard's bachelor party weekend in Mexico. Also, the girls force Penny to finally tell her family that she eloped with Leonard.