Mark Berry

While Sheldon goes to Vegas to win millions of dollars for science, Penny and Bernadette take Amy shopping for wedding dresses.

Leslie battles with Tom on her first day back with the Parks Department, the gang pranks Ben on his first day as City Manager

Christy and Bonnie set aside their differences to deal with a family crisis together.

When Holt starts getting death threats, Jake takes charge of his security; Terry gets his mojo back.

The team hunts a suspect who impregnates young women, has them give birth and murders them.

Jake and Amy settle their ongoing bet about who can make more arrests.