Leonard (Johnny Galecki) and Sheldon (Jim Parsons) are a pair of crazy scientist geeks with a combined IQ of over 360. Their scientist friends include the romantic Wolowitz (Simon Helberg) and an Indian who never talks to women. Recently, a beautiful playwright and restaurant hostess, Penny (Kaley Cuoco), moved in next door to the scientist geek. The geek began to get excited, and many ridiculous stories "exploded" among several friends.