Laura Spencer

After dealing with Sheldon while he was sick, Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend.

Amy and Sheldon spend Thanksgiving at the aquarium, as friends. Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette. Penny realises that Leonard knows her better than she thought.

An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard. Raj and Howard form a band.

Sheldon presses Leonard and Penny to choose a date for their wedding, while dealing with dramatic changes in his own relationship with Amy.

Raj's honesty about his past comes back to haunt him after his girlfriend Emily gives Penny the cold shoulder as a result. The guys consider becoming part-owners of Stuart's comic-book shop by investing in his business.

Penny tries to help Sheldon when he reconsiders his relationship with String Theory. During a dinner with Howard and Bernadette, Raj discovers Howard once embarrassed himself on a date with Emily.