An ocean of BAZINGA! and plastic balls :)
Leonard and Amy get to know each other better, while Howard and Bernadette spend the weekend with Mrs. Wolowitz!
Sheldon's mother pays a visit to see what's wrong with her son.
It's the nerd-tastic adventures of Geek-Man!!! What happens when you give Sheldon coffee? He makes the amazing transformation into Geek-Man!!!
A distraught Sheldon wants to help Leonard with his work.
Penny worries that she's screwed things up permanently with her friends, while Sheldon takes command of the paintball team.