Wil Wheaton will guest star again on CBS’ The Big Bang Theory on Thursday night. What kind of trouble will ensue when the guys encounter Wil Wheaton (Eureka, Fallout: New Vegas) as they camp out to wait for a screening of Raiders of the Lost Ark that includes 21 seconds of never-before-seen footage? What sorts of shenanigans occur at Penny’s (Kaley Cuoco) slumber party with Bernadette (newly promoted series regular, Melissa Rauch) and Amy (Mayim Bailik)? Check out the promo below:

The Big Bang Theory: Promo for “The 21 Second Excitation”

Watch The Big Bang Theory on CBS, Thursdays at 8/7C.

[Above: The Recursive Wil Wheaton]