FBI agent Malcolm Turner and his son, Trent, go undercover at an all-girls performing arts school after Trent witnesses a murder. Posing as Big Momma and Charmaine, they must find the murderer before he finds them.

smart , his upright , he repeatedly break the mystery , he is Malcolm Turner ( Martin Lawrence ) - what can get the FBI spy ! expert a shot , you know there . The horse is also the reason why a campaign streets, really because of his genius can not, won the boss thinks highly of . Bridge Is Falling afraid Vital been poked in the horse breaking from the major to clearly and logically , a stand sits at home wife and only know what to do . That just adolescent stepson Trent ( Brandon Jackson ) , the old love to give him trouble , let him in addition to daily recite Amitabha God bless to have no choice . Which do not , nag busy stalking a criminal predators , nerves stretched to the extreme , Trent booing , cock had witnessed a thrilling murder, and also act recklessly , almost silenced . Even if the demand is not on the old-age son nail in the coffin , can not watch his home of 17-year-old "flowers " people thorny destroy it ? Horse was forced to do anything , down to give birth to a trick : Since the detection magic is superb camouflage skills , maybe the child speak to him temporarily eat this line of rice , the way escaped . Some dressing , wearing bright-colored clothes two hundred pounds "fat mom " and "she " looks cattle high horse " grandniece Natsumi , the waltz in the door of the Georgia Women 's Institute of Performing Arts . " Maria " to a house girl loudly announced that she is a university new dormitory administrator , and " summer " became new members of the attending girls' schools . Yes, these two do not follow the common sense out of "woman" is the disguise to go to the girls' school undercover to investigate crimes horse two god child . Pressed for time, peril , they must find the murderer, in the shortest possible time deductible of their own lives do not say , so that more innocent people hurt . Can all the way to breathtaking Hyde process , more ready - to - clutter " grandniece " out of the way Maria can really bring perpetrators to justice , successfully complete the task ? They can save their lives ? They in turn sudden, the hilarious plot ?