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 hacked dad.
In the panicky, uncertain hours before his wedding, a groom with prenuptial jitters and his two best friends reminisce about growing up together in the middle-class African-American neighborhood of Inglewood, California. Flashing back to the twenty-something trio's childhood exploits, the memories capture the mood and nostalgia of the '80s era.