Germaphobe Sheldon is more hyper-vigilant than ever after Penny comes back from Nebraska where she was visiting with family who were sick with an unknown bug. Regardless, ...

When Penny asks the guys to her party, which will include dancing, they seriously think about not attending as they aren't dance people. But when they learn it's a costum ...

It's Christmas and when someone hacks the Internet shutting it down, there's concern that it could be an attack. So everyone is called in. Gibbs decides to bring all the ...