Rebecca gets stuck on a plane with her therapist, who takes her on a surprising journey. Meanwhile, in West Covina, Josh, Paula, Darryl and even a reluctant Greg come together to find Rebecca.
The Power of Madonna
Mr. Schuester is concerned that the girls in the glee club are being disrespected and bullied by the guys. Looking to Madonna and her musical message of equality as inspiration, he challenges the entire team to choose Madonna songs as their next assignment in the hopes that the girls embrace her strength, independence and confidence and that the guys will see the error of their misogynistic ways. The glee club takes the assignment to heart as they perform some of Madonna’s greatest hits, including “Express Yourself” and “Like A Prayer.” Meanwhile, Kurt and Mercedes give Sue a vote of confidence with a makeover that is definitely in “Vogue”.
Protect Baratie! The Great Pirate, Red Foot Zeff!
Don Krieg promises further malice as he returns to his ship, but the threat to the Baratie proves short-lived as an even bigger threat arrives!
The Locomotive Manipulation
On Valentine's Day, Sheldon and Amy go on a trip to wine country with Howard and Bernadette; Penny and Leonard rush Raj's dog to the vet.
The Spoiler Alert Segmentation
A fight between Sheldon and Leonard impacts Amy and Penny's living arrangements; while Howard is away, Raj helps Mrs. Wolowitz out.
The Friendship Contraction
Sheldon's selfish demands force Leonard to reconsider their friendship. Meanwhile, Wolowitz tries to pick his astronaut nickname.
The Benefactor Factor
A wealthy donor to the university makes Leonard consider how far he's willing to go for the sake of science.
The Large Hadron Collision
Leonard can only bring one guest on a trip to see CERN's Large Hadron Collider (the world's largest and highest energy particle accelerator) in Switzerland on Valentine's Day.
The Maternal Capacitance
Leonard and Penny are drawn together after a disastrous visit from Leonard's mother.
The Pork Chop Indeterminacy
The rest of the gang fall for Sheldon's twin sister, and Leonard's plan to win her heart is derailed when Sheldon declares he'll be the one to decide who can date her.