The Big Bang Theory 3×15
Leonard can only bring one guest on a trip to see CERN’s Large Hadron Collider (the world’s largest and highest energy particle accelerator) in Switzerland on Valentine’s Day.
Serie: The Big Bang Theory
Director: Mark Cendrowski
Guest Star: Jim Parsons, Johnny Galecki, Kaley Cuoco, Kevin Sussman, Kunal Nayyar, Mayim Bialik, Melissa Rauch, Simon Helberg