When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to bring Nobel laureates Kip Thorne, George Smoot and Frances Arnold to their side. Also, Halley’s fear of the dark leads to opportunity and conflict for Howard, Bernadette and Stuart.
Elenco: Jim Parsons , Johnny Galecki , Kaley Cuoco , Simon Helberg , Kunal Nayyar , Mayim Bialik , Melissa Rauch , Kevin Sussman , Aarti Mann , Kevin Sussman , Sara Gilbert .