Sheldon is intrigued with the of beta testing an MIT designed machine that purports to help read people’s emotions. Leonard tries to hide his anger when Penny announces that her brother is coming to town and staying with them and Raj invites his ex-girlfriends to give him dating advice.moreless
Lillian's invited to a party on the beach by her new friends; Beatrice meets Thomas Edison; Blanche receives a strange letter from the Triangle Shirtwaist Factory; Garfield tries to hold the family together.moreless
Hortense falls for a chef who accompanies the Commodore on his return to Bellacourt Manor. Meanwhile, Frederick is subjected to a psychological evaluation to determine if he's fit for a Senate run; and Hamish tries to blackmail Chair.moreless
Chair receives a lesson in the art of servitude from Peepers. Meanwhile, Lillian and Beatrice get ready for Newport's Most Beautiful Pageant, but Hortense sets out to sabotage the event.
When Penn finds out that Phyllis is trying to find the Most Dangerous World Imaginable to find and rescue his parents, he takes matters into his own hands causing him to almost destroy an innocent world and lose his job.moreless
Billy's mocked by Josh and his young comedian friends when they don't know he can hear them.
Ben finally gets rid of Skurd... just when he needs the Slimebiote the most.
A bevy of female comedians prove to the guys that women can be very funny.
Blukic and Driba's old crush, Luhley, comes to Earth, seeking a piece of Galvan tech they left when they crashed in Area 51 years ago.
Steven teams up with Amethyst in an underground wrestling league.
To protect a girl he likes, Steven forms an unbreakable magic bubble but is unable to turn it off.
Steven's newfound shape-shifting abilities quickly spiral out of control.
A mysterious Natesville resident keeps popping up in the Chance's lives.
Gem Glow: Steven thinks his favorite ice cream sandwiches are the trick to summoning his magic shield but learns otherwise when facing off with an acid spewing insect monster. Laser Light Cannon: A mysterious red eye threatens to destroy Beach City, and the only thing that can stop it is a laser light cannon that once belonged to Steven's mother. Steven goes to his father for help in finding the cannon through storage.moreless
Sketches include: A comedy roast for someone who shouldn't be roasted and men who teach a class on how to please a woman.
NTSF must deal with reports of aliens.
Leonard gets a new job opportunity to work abroad for the summer and Sheldon is feeling a little bit jealous. Meanwhile, Raj tries to move his relationship with Lucy into a new direction by introducing her to his friends, but he fears that she may not like them.moreless
After an aborted girls' trip to Vegas, they are all playing Dungeons and Dragons together. Raj leaves after he finds that Lucy is free and he pushes her to do things that scare her. In the game, Penny casts a love spell on Sheldon and Amy's characters which gets Amy very upset because they are treating her and Sheldon's relationship as a joke.moreless
Sheldon feels lost after one of his favorite TV shows gets canceled too soon and Amy tries to help him get over his compulsive need for closure. Meanwhile, Raj discovers a secret about his new love interest, Lucy.moreless
It's a Mother's Day to remember as Burt and Barney take a road trip to Maw Maw's childhood home and discover that her mother may still be alive.
Raj and Lucy have their first date meeting in a library and texting to each other. The guys have to promote science careers for women at Howard's old middle school, while the girls go to Disneyland and get made up as Disney Princesses.moreless
Chad and Chris meet when Chad discovers Chris tied to a tree by bullies.
Chris and Chad are told where they might be able to find a naked woman doing a photo shoot.
With six contestants left, the Nerd War challenges the teams to create a "Nerd Anthem". In the Nerd Off, two nerds go head-to-head in a dancing video game competition.
Sheldon has Penny as a guest on a "Fun with Flags" episode and she gets him to attend her acting class' presentation of "A Streetcar Named Desire". Raj drops out after Lucy unexpectedly leaves their first get together.moreless
The couples are getting for Valentines' Day. Leonard, Penny, Howard and Bernadette are going to dinner. Sheldon and Amy are trying to get the perfect gifts for each other. Raj and Stuart are planning a singles only party at The Comic Book Store.moreless
Sabrina's mom hires the Modern Family camera crew to capture Jimmy and Sabrina's wedding day, but a series of catastrophes threatens to ruin the entire event.