Black man wears a suit looking like a fat black woman.

When a street-smart FBI agent is sent to Georgia to protect a beautiful single mother and her son from an escaped convict, he is forced to impersonate a crass Southern granny known as Big Momma in order to remain incognito.

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.