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The family is locked down at home due to a shooting incident in the neighborhood.

Sheldon is forced to tutor Georgie when poor grades threaten his brother's future on the football team.

Penny's ex-boyfriend Zack learns that he is infertile, so he asks Leonard for help; Koothrappali attempts to mend things with his ex-fiancee Anu.

Koothrappali and Leonard take Wolowitz to Las Vegas; Sheldon is forced to bunk with Penny when he gets locked out of his apartment.

One champion risks it all with a master plan; a stunning decision throws an elite competitor into a blockbuster battle.

The remaining contestants compete in five games, "Head Catch," "Sponge Race," "Clowning Around," "Target Practice" and "Thimble Tower.".

Stay informed with the latest breaking news and headlines.

Missy asks some uncomfortable questions at church; Meemaw and Georgie go into business together.

Jerry's new membership in the Friars Club is jeopardized when a jacket he borrowed from the club gets lost.

Kramer gets into meat slicing; Jerry dates a doctor (Marcia Cross) who isn't impressed with his job; George's new boss is a former adversary.

When Mike and Vanessa invite Jen's father to her graduation, Jen struggles with accepting his "plus one" -- his girlfriend Fiona; the Outdoor Man crew debates over which word was said in a viral audio recording that's been tearing the internet apart.

A car restoration article throws Mike, Chuck, and Ed into the spotlight, while leaving Joe feeling unappreciated; Ryan overreacts after taking Kyle's psych test.