The Big Bang Theory - Season 2 - The Killer Robot Instability (Episode 12)
Plot: Penny's criticism of Wolowitz's romantic life pushes him into depression and AWOL for a fighting robot battle the rest of guys are depending on him for.
Episode Aired On:
Monday, January 12 2009 16 years ago
Johnny Galecki
Jim Parsons
Kaley Cuoco
Simon Helberg
Kunal Nayyar
John Ross Bowie
Carol Ann Susi
Mark Cendrowski
Bill Prady
Steven Molaro