S05E04 The Wiggly Finger Catalyst

Penny sets up Raj with a deaf friend, not knowing that she's actually a gold digger, and Sheldon decides to let his minor decisions rest on the roll of the dice.

S05E03 The Pulled Groin Extrapolation

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.

S05E02 The Infestation Hypothesis

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.

S05E01The Skank Reflex Analysis

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.