Episode Titles: Bachelor
You are viewing a list of 1 The Big Bang Theory episode featuring "Bachelor" in their title.
Season 9, Episode 3 - The Bachelor Party Corrosion
Aired October 5, 2015
When the guys head off to Mexico for the weekend to celebrate Leonard's marriage with a belated bachelor party, their science skills are put to the test when their van gets a flat tire. Meanwhile, the girls enjoy a low-key bachelorette party for Penny, which leads to her finally telling her family that she eloped with Leonard.