Bridget Jones, played by Renée Zellweger, is over the moon about her blossoming relationship with Mark Darcy, portrayed by Colin Firth. However, her excitement soon turns to insecurity when she encounters Mark's charming and clever assistant, Rebecca Gillies, played by Jacinda Barrett.
While working on the morning show Sit-Up Britain, Bridget unexpectedly runs into her former lover, Daniel Cleaver, brought to life by Hugh Grant. Daniel presents her with an enticing offer to join him on a new travel series, despite her initial protests and her vehement declaration that he is a “deceitful, sexist, disgusting specimen of humanity.” Ultimately, she relents, putting aside her friends' warnings.
As Bridget anticipates a romantic proposal during Mark's "Law Council Dinner," the night spirals into chaos. A catastrophic mix-up during a trivia quiz leaves Bridget humiliated, especially when a mishap involving a question about Madonna leads to Rebecca's win. After a heated argument following the dinner, Bridget storms out, but Mark surprises her with a heartfelt apology and confessions of love. Their turbulent relationship takes them to the snowy slopes of Lech, Austria, where Bridget discovers that Rebecca has also joined them.
Amidst this tension, Bridget faces a pregnancy scare and a disagreement over future parenting, but her test results reveal she is not expecting. After returning home, complications arise during a family lunch, leaving Bridget feeling dismissed by Mark. A voicemail from Rebecca rekindles Bridget's insecurities; following a confrontation where Mark refuses to clarify their situation, she decides to end things with him.
Seeking an escape, Bridget travels to Thailand with her friend Shazza and Daniel to film The Smooth Guide. In the exotic backdrop, she has a fun but disillusioning time, especially after a careless incident with psilocybin mushrooms leads to romantic tension with Daniel, which quickly fizzles when a Thai prostitute disrupts their evening.
Meanwhile, Shazza finds herself infatuated with a younger man named Jed, who gifts her a peculiar fertility snake bowl. Unfortunately, this bowl, packed with cocaine, lands Bridget in a Thai prison, where she finds herself comforting and connecting with fellow inmates through song and dance, particularly to Madonna’s "Like a Virgin."
Just as Bridget is feeling hopeless, Mark swoops in to rescue her, but misunderstandings about her relationship with Daniel create further tension. Back in Britain, Mark finds himself in a showdown with Daniel, insisting that Bridget deserves better.
Upon her return to Heathrow Airport, Bridget is treated like a celebrity, welcomed back by her parents who are preoccupied with their vow renewal plans. To her astonishment, her friends inform her of Mark’s heroic efforts in proving her innocence. In a swirl of emotions, Bridget rushes to confront Mark, only to find Rebecca there. When Rebecca surprises her with a kiss, Bridget turns her down respectfully.
In a final, romantic twist, Bridget seeks Mark out at his office, penning an emotional plea for a second chance. In a heartwarming conclusion, he proposes, and she joyfully accepts—adding to the sweet chaos as her parents renew their vows and she catches the bouquet, hinting at a new beginning.
