The Big Bang Theory - Season 12

Best friends and brilliant physicists Leonard Hofstadter and Sheldon Cooper are geniuses in the lab but socially challenge outside of it. Despite this, Leonard married his beautiful, street-smart neighbour, Penny. And Sheldon, after a long courtship, wed successful neurobiologist Amy. And while aerospace engineer Howard and his adorable microbiologist wife, Bernadette, explore the predicament of being married with two kids, astrophysicist Raj considers a traditional arranged marriage. As the supersmart friends solve quotidian conundrums posed by academia. Family crises and video games, their experiments in domestic bliss never fail to produce hilarious results. But all good theories arrive at a conclusion. The twelfth and final season of "television's perpetual laughter continuum comprises" 24 supercharged episodes that take comedy to the next dimension...and beyond.

24 Episodes

The Conjugal Configuration

Season 12 - Episode 1

Sheldon and Amy's honeymoon runs aground in New York. Penny and Leonard discover they are uncomfortably similar to Amy's parents. Raj insult...

The Wedding Gift Wormhole

Season 12 - Episode 2

Sheldon and Amy drive themselves crazy trying to figure out what 'perfect gift' Leonard and Penny gave them for their wedding. Raj decides h...

The Procreation Calculation

Season 12 - Episode 3

The Wolowitzes' life gets complicated when Stuart starts bringing his new girlfriend home. Also, Penny and Leonard talk about starting a fam...

The Tam Turbulence

Season 12 - Episode 4

When Sheldon won't tell anyone why he's never mentioned his childhood best friend, Leonard takes matters into his own hands. Bernadette and ...

The Planetarium Collision

Season 12 - Episode 5

When Amy doesn’t have time to work on super-asymmetry, Sheldon goes to great lengths to ensure she’s available to work with him even it if m...

The Imitation Perturbation

Season 12 - Episode 6

When Howard dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party. Leonard is shocked that P...

The Grant Allocation Derivation

Season 12 - Episode 7

Leonard is caught between a rock and a hard place when he's responsible for distributing extra grant money. Bernadette turns the backyard pl...

The Consummation Deviation

Season 12 - Episode 8

Sheldon tries to bond with Amy's father, but when Howard lures Mr. Fowler away with magic tricks, Sheldon has no choice but to bond with Mrs...

The Citation Negation

Season 12 - Episode 9

Sheldon and Amy are devastated after learning from a Russian paper that Super Asymmetry has already been theorized and disproven. Meanwhile,...

The VCR Illumination

Season 12 - Episode 10

Sheldon and Amy are still down about their theory being disproven, but a VHS tape from Sheldon’s past inspires him not to give up. Bernadett...

The Paintball Scattering

Season 12 - Episode 11

Penny and Leonard organize a paintball game that results in mayhem when Sheldon is jealous of Amy. Also, Raj catches Anu with her ex-boyfrie...

The Propagation Proposition

Season 12 - Episode 12

Penny runs into her ex-boyfriend, Zack, who invites her and Leonard to a dinner to meet his newlywed wife. After the dinner the newlywed cou...

The Confirmation Polarization

Season 12 - Episode 13

Sheldon and Amy are thrilled when their super asymmetry theory is proven by two physicists, until they try to kick Amy off the Nobel nominat...

The Meteorite Manifestation

Season 12 - Episode 14

Sheldon is thrilled to help Bernadette and Wolowitz navigate bureaucratic paperwork, until he discovers they are breaking the law. Also, Leo...

The Donation Oscillation

Season 12 - Episode 15

Penny tries to seduce an abstaining Leonard to ruin his "donation" for her ex-boyfriend, Zack, and his wife, Marissa. Also, Wolowitz, Bernad...

The D & D Vortex

Season 12 - Episode 16

The gang finds out Wil Wheaton hosts a celebrity Dungeons and Dragons game involving William Shatner, Joe Manganiello, Kareem Abdul-Jabbar a...

The Conference Valuation

Season 12 - Episode 17

When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is in charge of the kids. Also, Sheldon finds a bo...

The Laureate Accumulation

Season 12 - Episode 18

When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to bring Nobel laureates Kip Thorne, George S...

The Inspiration Deprivation

Season 12 - Episode 19

The concept of what it would mean for women everywhere if Amy were to win a Nobel Prize causes Amy to have a meltdown. Also, Howard and Raj ...

The Decision Reverberation

Season 12 - Episode 20

Raj is worried people won’t take him seriously in his own field after publishing a paper that suggests he may have discovered alien life. Al...

The Plagiarism Schism

Season 12 - Episode 21

Kripke has proof that Dr. Pemberton plagiarized his thesis in college, and Sheldon and Amy aren't sure if they should turn him in or not. Me...

The Maternal Conclusion

Season 12 - Episode 22

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....

The Change Constant / The Stockholm Syndrome

Season 12 - Episode 23

Sheldon and Amy await big news. Meanwhile, Penny and Leonard have some big news of their own. Also, Howard and Bernadette face the stressful...

Unraveling the Mystery: A Big Bang Farewell

Season 12 - Episode 24

Johnny Galecki and Kaley Cuoco will lead fans on a trip down memory lane, sharing some of the best-kept backstage secrets and personal memor...