FBI agent Malcolm Turner goes back undercover as Big Momma, a slick-talking, slam-dunking Southern granny with attitude to spare! Now this granny must play nanny to three dysfunctional upper-class kids in order to spy on their computer hacker father.

When perpetually single, aging music industry exec Harry Sanborn, and his latest trophy girlfriend, Marin, arrive at her mother's beach house in the Hamptons, they find that her mother, playwright Erica Barry, also plans to stay for the weekend. Erica is scandalized by the relationship and Harry's sexist ways. But when Harry has a heart attack while there, and the doctor prescribes bedrest, his only option is to stay at the Barry home. Left in the care of Erica and his doctor, a love triangle starts to take shape.

From teen comedian to Hollywood legend, Eddie Murphy revisits his extraordinary showbiz ride with raw honesty and humor.