This episode picks up where episode #616 left off, with Koothrappali on his date with Lucy from the comic book store. Much to his dismay, Lucy runs away during the middle of the date, shattering his confidence. Leonard, Wolowitz, and Bernadette try to pull him out of his slump, but it's no use. Luckily, Wolowitz runs into Lucy at the comic book store, where she gives him her phone number to give to Koothrappali. When they finally talk to one another, Lucy apologizes for running off, saying that she's incredibly shy and damaged, but she really does like him and agrees to go on another date. Meanwhile, Sheldon enlists Penny's help for a new episode of Fun With Flags, and she winds up giving him useful acting tips. Impressed, he actually compliments Penny on her acting ability, which means a lot to her. Later, the gang goes to see her perform in "A Streetcar Named Desire" and she blows them all away with her performance.