Seth Coltan

Sheldon heads to Las Vegas to win money for science. Meanwhile, Amy is taken wedding dress shopping by Penny and Bernadette, but her choices see them fall into a web of lies.

Oscar starts a Dunder Mifflin happy hour, and Michael tries to impress a friend of Jim and Pam's. Elsewhere, Andy desperately wants to hide his relationship with Erin to avoid drama.

When the BAU track down an unsub that disfigures their victims, Rossi has an awkward visit from his ex-wife.

The body of a petty officer is found on a golf course, and McGee tries to locate a key witness with the victim's ham radio; Palmer looks to his co-workers for donations to a charity building playgrounds for children.

The CBI team head out to a run-down Wild West tourist town when the owner is found dead; Kirkland tries to find out how much Patrick knows about Red John.

After she is promoted to manager of the restaurant, Christy finds out that being the boss is not all it's cracked up to be.