12 Season
279 Episode
The Big Bang Theory - Season 12 Episode 12 The Propagation Proposition
Penny runs into her ex-boyfriend, Zack, who invites her and Leonard to a dinner to meet his newlywed wife. After the dinner the newlywed couple make an odd proposition to Leonard, which makes Penny to freak out. Also, Raj attempts to mend things with his ex-fiancée, Anu.
- Country : United States of America
- Genre : Comedy
- Director : Chuck Lorre, Bill Prady
- Cast : Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Melissa Rauch