The glee club gets some news that’s sure to rattle a few nerves. Meanwhile, Quinn connects with her “funky” side with a little help from Mercedes, and Will gets revenge on Sue.
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.
Amy tries to help Sheldon get over his compulsive need for closure when one of his favorite TV shows is canceled; Raj discovers a secret about Lucy.
When Wolowitz gets to work with Stephen Hawking, Sheldon is willing to do anything to meet his hero.
When Priya finds a loophole in the roommate agreement to throw Sheldon out for the night, Penny, Amy and Bernadette take him to a nightclub.
Leonard and Sheldon compete for the attention of a famous female physicist.
Leonard and Koothrappali escort a heartbroken Wolowitz to Las Vegas, and Sheldon becomes locked out of his apartment and must stay with Penny.
The Task Force uses Misa as a way to get closer to the Yotsuba corporation. But things get complicated when Rem tries to communicate with her.