9x02 The Separation Oscillation
First Aired: Sep. 28, 2015 on CBS
Summary: Leonard confronts the woman he kissed on the North Sea in an attempt to set Penny’s mind at ease. Also, Sheldon films a special episode of “Fun with Flags” after his breakup with Amy, and Bernadette feels guilty about withholding a secret from Penny.
Guest Stars[no credits found]