A brilliant but reclusive scientist, Doctor Wolcott, invites Sheldon to his cabin in the middle of nowhere, and Leonard, Raj and Howard go along for the trip. Also, Penny and Bernadette improvise after Amy doesn't like the tame bachelorette party they planned for her.
Trailer
Guest Cast

Ed Lieberman
voices LecturerCast Appearances

Kaley Cuoco
as PennyEpisode Discussion
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