What is the title of the final episode of The Big Bang Theory?

The title of the final episode of The Big Bang Theory is “The Stockholm Syndrome.”

The episode is the 24th and final installment of season 12, and the 279th episode overall. It originally aired on CBS on May 16, 2019. The title refers to the group’s trip to Sweden for Sheldon and Amy’s Nobel Prize ceremony, although the story uses the phrase humorously rather than presenting a literal hostage situation.

The finale brings several major storylines together. Sheldon, Amy, Leonard, Penny, Howard, Bernadette, Raj, and Stuart travel to Sweden, where travel stress and Sheldon’s self-centered behavior cause conflict. Penny also reveals that she is pregnant, while Raj unexpectedly finds himself seated beside actress Sarah Michelle Gellar on the flight. The working elevator in the apartment building is another long-running joke finally resolved.

At the Nobel ceremony, Sheldon abandons the self-focused speech he had prepared and thanks his family, friends, wife, and fellow scientists. He and Amy receive their medals, and the series ends with the group eating together in apartment 4A. “The Change Constant” was the preceding episode, not the finale.