The gang deals with the fallout from Penny and Raj's night together. Amy counsels Penny when she considers moving back to Nebraska due to her failing acting career. Sheldon takes charge of the paintball team.
Sheldon has health issues with Penny's new chair. Amy gets inadvertently caught in the middle of a fight between Sheldon and Penny. Leonard tries to add some spice to his long-distance relationship with Priya.
While Sheldon stays at home to play with his new train set, Leonard and Amy learn a lot about each other when he goes as her "plus one" to a wedding. Howard and Bernadette spend the weekend with his mother.
When Stuart from the comic book store asks Amy on a date, Sheldon considers having a more serious relationship with her. Meanwhile, the guys become obsessed with a new card game involving Wild West heroes and witches.