Sheldon gives spontaneity a try, which causes unexpected friction for Penny, Bernadette and Amy; Raj asks Howard for help with preparation for a date with Emily.
Director:
Mark Cendrowski
Cast:
Johnny Galecki
Jim Parsons
Kaley Cuoco-Sweeting
Simon Helberg
Kunal Nayyar
Mayim Bialik
Melissa Rauch
Laura Spencer
Kimberly Gregory