Swati Kapila

As Sheldon stresses out about picking a wedding date, Amy tries to convince him that he has a more laid-back side by recording him talking in his sleep. Meanwhile Raj and Stuart (series regular KEVIN SUSSMAN) compete to win the heart of Bernadette’s new coworker, Ruchi (guest star SWATI KAPILA).

Sheldon and Bert collaborate on a research project, despite Sheldon’s embarrassment. Meanwhile, Penny and Bernadette coach Raj on how to navigate his relationship with Ruchi.

Leonard and Howard are furious when they learn that Sheldon went to work with the military behind their backs. While Bernadette is on bed rest, she asks Raj go investigate when she suspects Ruchi might be trying to steal her job. Guest star DEAN NORRIS returns as Colonel Williams.

When Kat becomes jealous after hearing a song Max wrote, she tries to plan a romantic evening for the two of them to spice up their relationship. Meanwhile, Randi learns how to be a cool yet responsible stepmom.

April learns that she has cancer just as things are taking off in her career and love life.

Liza is drawn into her author's Upper East Side life, forcing her worlds to collide. Kelsey comes to Lauren's rescue.