Bernadette's one-track mommy mind frustrates Amy. Leonard clashes with Sheldon over control of the building's tenant board. Raj and Howard attempt to locate the owner of a high-end drone. The guys tag along when Sheldon gets invited to the remote cabin of an eccentric genius. Amy's bachelorette party isn't what she expected. Complications ensue when Stuart's comic book store suddenly becomes popular. Penny and Raj disagree over a celestial discovery. As Sheldon's wedding day approaches, his mother issues an ultimatum over his brother.
Howard and Bernadette's kids spread an infectious disease. A scientific breakthrough, "Star Wars" trivia and heartfelt declarations of love make Sheldon and Amy's wedding day a truly special occasion. In the show's final season, the gang's only constant is change amid the pursuit of Nobel Prize dreams and their ever-evolving relationship as a team.
Sheldon and Amy's honeymoon hits a scheduling snag, Leonard upsets Penny with an unflattering comparison and Raj sparks a Twitter war with a celebrity. While Sheldon and Amy try to decipher the meaning of Leonard and Penny's wedding gift, Raj seeks matchmaking help and Stuart gets dating advice.
Raj's dating compatibility questionnaire leads to a possible match -- and a revelation from Penny that surprises Leonard. When Sheldon refuses to see his childhood best friend, the gang tries to figure out what led to their rift. Bernadette and Penny meet Raj's new flame.
Sheldon wants Amy to spend more time on their super-asymmetry project. Raj seems reluctant to have Howard join his planetarium show. On Halloween, Penny and Leonard share very different recollections of their first kiss, while Howard's costume hurts Sheldon's feelings.
Bernadette finds the perfect hideaway to de-stress after work. Leonard faces a tough decision when he's tasked with handing out surplus grant money. On the cusp of taking his relationship with Anu to a new level, Raj reverts to an old pattern.
Sheldon attempts to forge a bond with Amy's parents. While helping Sheldon and Amy track down citations for their super-asymmetry paper, Raj and Leonard make a startling discovery. When Sheldon needs a pep talk after a work setback, Leonard breaks out the big guns. Bernadette helps Howard pursue his long-ago magician dreams. The gang's planned paintball game turns out to be the perfect opportunity for the assembled couples to hash out their relationship issues. Penny's ex Zack reappears with an unusual request for the Hofstadters.
Raj tries to salvage his relationship with Anu. Sheldon and Amy receive good news on their super-asymmetry project, but their happiness is short-lived. Bernadette taps Penny for a new role at work. Sheldon helps Howard and Bernadette find a legal remedy to a neighbor's intrusive renovation. Leonard feels left out when Raj works on a new project.
To deliver on his promise to Zack, Leonard rebuffs Penny's advances. Meanwhile, Bernadette decides to brave weightlessness to prove Howard wrong.
Hang time with the Wolowitz kids leads to a realization for both Leonard and Sheldon. Penny entertains an intriguing offer while at a drug conference. To boost Sheldon and Amy's Nobel Prize campaign against their more PR-savvy rivals, the university hosts a laureate-packed reception in their honor. A stressed-out Amy begins to crack under the pressure of being a Nobel Prize candidate and potential role model for young women in science. Penny pushes Leonard to stop being such a people-pleaser.
Raj grows frustrated when his scientific research is misconstrued. Facing an ethical dilemma when they acquire information that could clear their path to the Nobel Prize, Sheldon and Amy seek advice from their friends. The sudden attentiveness of Leonard's visiting mother confuses and delights him. Raj comes to a big decision about his future with Anu. Big news brings big changes for Sheldon and Amy, but as one tries to embrace the shake-up, the other wants everything to stay the same.
In the series finale, secrets are revealed, hearts are broken and feelings declared as the gang's journey comes full circle. Call Netflix Netflix. Physicists Leonard and Sheldon find their nerd-centric social circle with pals Howard and Raj expanding when aspiring actress Penny moves in next door. Creators: Chuck Lorre, Bill Prady.
Watch all you want for free. Episodes The Big Bang Theory. Release year: Pilot 23m. The Big Bran Hypothesis 21m. The Fuzzy Boots Corollary 22m. The Luminous Fish Effect 21m. The Hamburger Postulate 20m. The Middle Earth Paradigm 21m. The Dumpling Paradox 21m.
The Grasshopper Experiment 20m. The Cooper-Hofstadter Polarization 19m. The Loobenfeld Decay 21m. The Pancake Batter Anomaly 22m. The Jerusalem Duality 20m. The Bat Jar Conjecture 22m. The Nerdvana Annihilation 20m.
The Pork Chop Indeterminacy 22m. The Peanut Reaction 20m. The Tangerine Factor 20m. The Bad Fish Paradigm 22m. The Codpiece Topology 21m. The Barbarian Sublimation 21m. The Griffin Equivalency 21m. The Euclid Alternative 20m. The Cooper-Nowitzki Theorem 21m. The Lizard-Spock Expansion 20m.
The White Asparagus Triangulation 21m. The Vartabedian Conundrum 21m. The Bath Item Gift Hypothesis 21m. The Killer Robot Instability 21m. The Friendship Algorithm 21m. The Financial Permeability 22m.
The Maternal Capacitance 21m. The Cushion Saturation 21m. The Terminator Decoupling 21m. The Work Song Nanocluster 21m. The Dead Hooker Juxtaposition 20m. The Hofstadter Isotope 20m. The Vegas Renormalization 22m. The Classified Materials Turbulence 19m. The Monopolar Expedition 21m. The Electric Can Opener Fluctuation 22m.
The Jiminy Conjecture 21m. The Gothowitz Deviation 20m. The Pirate Solution 21m. The Creepy Candy Coating Corollary 21m. The Cornhusker Vortex 20m. The Guitarist Amplification 20m. The Adhesive Duck Deficiency 21m. G Sheldon and Amy are devastated to learn from a Russian paper that Super-Asymmetry has already been discovered and disproven. G Sheldon and Amy are still down about their theory being disproved, but a VHS tape from Sheldon's past inspires him not to give up.
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What's New. The company is shelling out a fortune to get the sitcom on its new streaming platform. The 'Big Bang' star has strong words for those who think she looks like she's with child.
The network decides it doesn't have to give tons of money to the CEO it fired this year. The show's producers have plenty of ideas for what they're not going to do in the final season.
Season 12 Episode 24 The Stockholm Syndro Season 12 Episode 21 The Plagiarism Schis Select the sources you want displayed in the episode guide. Season 12 24 full episodes, clips available. Episode 24 - The Stockholm Syndrome. May 16th, Bernadette and Wolowitz leave their kids for the first time; Penny and Leonard try to keep a secret; Sheldon and Amy stick together; and Koothrappali makes a new friend, as the gang travels together into an uncharted future.
Episode 23 - The Change Constant. May 16th, Everything changes as Sheldon and Amy await big news in the first of a two-part series finale. Episode 22 - The Maternal Conclusion. May 9th, Leonard is pleasantly surprised when Beverly comes to visit and she's genuinely kind to him, until he finds out the real reason she's there.
Episode 21 - The Plagiarism Schism. Episode 20 - The Decision Reverberation. April 25th, Koothrappali is worried people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life.
Episode 19 - The Inspiration Deprivation. April 18th, The concept of what it would mean for women everywhere if Amy were to win a Nobel Prize causes Amy to have a meltdown. Episode 18 - The Laureate Accumulation. Episode 17 - The Conference Valuation.
March 7th, When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is in charge of the kids. Episode 15 - The Donation Oscillation. February 7th, Penny tries to seduce an abstaining Leonard to ruin his "donation" for her ex-boyfriend, Zack, and his wife, Marissa. Episode 14 - The Meteorite Manifestation. January 31st, Sheldon is thrilled to help Bernadette and Wolowitz navigate bureaucratic paperwork, until he discovers they are breaking the law.