Rebecca is determined to get her life on track so when Josh’s sister asks her to be a bridesmaid, Rebecca decides to use her role to make things right with Valencia. Paula cannot accept Rebecca’s new mindset while Greg, when helping someone else with their love dilemma, makes a realization of his own.
When Kurt sets his dad, Burt, up with an unexpected partner his plan for a nuclear family may backfire. Sue demands that the Cheerios! go on a crazy diet in preparation for a big interview with “Splits” magazine and April Rhodes returns to save Will and the glee club.
The Going Merry's been stolen by Nami, and the showdown for possession of the Baratie is delayed. But the action's not dead in the water – Zoro challenges Hawk-Eye Mihawk to a duel!
When Leonard buys a dining room table, Sheldon re-evaluates the changes in his life; Bernadette is torn when Wolowitz gets the chance to go back to space.
The guys search for a perfect Valentine's Day gift for their significant others; Stuart and Raj host a "lonely people" party at the comic book store.
When Sheldon is forced to take his vacation, he goes to work with Amy in her neurobiology lab. Also, Bernadette wants Howard to sign a pre-nup.
As Wolowitz contemplates taking things with Bernadette to the next level, Leonard rekindles his relationship with Raj's sister Priya.
Sheldon winds up in traffic court when he gets a ticket because of Penny.
A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.
Penny wants to throw a surprise party for Leonard, but Sheldon's indulgence at an electronics store throws her off-track. Meanwhile, Howard makes a terrible sacrifice for the sake of the surprise.