Rebecca learns that Josh has conflicted feelings for her and Darryl wants to let everyone know about his newfound bisexuality. Meanwhile, Greg must figure out how to work alongside Heather post break-up.
Fresh off their monumental win at Sectionals, New Directions is on top of the world. With an extra spring in their step, they get to work on new numbers for Regionals. But when Rachel and Finn’s budding romance hits a bump in the road after she becomes involved with a competitor, Jesse St. James , it threatens to derail the entire club. Mr. Schuester pays a visit to Shelby Corcoran, coach of Vocal Adrenaline, to confirm Jesse’s motives. Meanwhile, Will is newly single, but is he ready to take his relationship with Emma to the next level? And to top it all off, Sue Sylvester returns from her condo in Boca with a renewed focus on destroying Will and disbanding the glee club.
The staff and patrons of the Baratie panic when Don Krieg arrives! The starving pirate begs for nourishment, only to find himself denied. Unable to see a wretch starve, Sanji steps in once again.
Leonard and Sheldon publish a paper which is widely accepted except for comments from an internet troll. Meanwhile, the girls reminisce about embarassing incidents from their past.
Unable to get Comic-Con tickets, Sheldon tries to hold his own convention and ends up spending a wild evening with James Earl Jones; the ladies try to act maturely.
Sheldon faces a crisis of confidence when he is forced to work with his nemesis, Barry Kripke; Raj and Howard buy expensive action figures of themselves.
Leonard and Penny deal with the idea of starting a relationship again and Raj finally finds a "woman" he can talk to without being drunk. Meanwhile, Sheldon decides to start a YouTube series entitled "Sheldon Cooper presents Fun with Flags" with the help of Amy.
Hoping it will make him a better teacher, Sheldon has Penny give him acting lessons. Raj has fantasies about a friend's girlfriend.
Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.
Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.