The Big Bang Theory

Sheldon flees back to Texas in disgrace when he learns that the guys tampered with his arctic expedition data -- forcing his friends to follow him.

Leonard and Penny struggle to recover from an awkward first hookup; Sheldon and Howard stake their comic books to determine the species of a cricket.

Howard and Raj visit a Goth nightclub to pick up women, while Sheldon attempts to build a better Penny using chocolate-based behaviour modification.

Raj must find a new job or be sent back to India. Sheldon, however, has a solution which leaves Leonard and Penny dealing with Howard as third wheel.

While Sheldon settles a score with his nemesis, Wil Wheaton, Wolowitz begs Leonard to get Penny to set him up with one of her friends.