Renée Zellweger, Hugh Grant and Colin Firth reprise their roles from the previous films. Chiwetel Ejiofor, Leo Woodall, Jim Broadbent and Isla Fisher join the cast. Bridget Jones, now a widowed single mother, navigates the challenges of parenthood and modern dating. As she re-enters the dating world, she finds herself pursued by a younger man and forms an unexpected connection with her son's science teacher.