Big Momma is back - and this time he has big backup: his teenage stepson!

Also known as Big Mommas 3, Martin Lawrence is back reprising his role FBI agent Malcolm Turner. Jascha Washington declined to reprise his role as Trent Pierce from the first two films, and Brandon T. Jackson replaced him for his role.

Here is the plot of the movie:

Malcolm Turner (Martin Lawrence) has been going undercover as “Big Momma”. His teenage stepson Trent Pierce (Brandon T. Jackson) has just graduated from high school and is accepted into Duke University. However, he prefers to pass on college and pursue a music career as a rapper named “Prodi-G”. With his mother Sherry away on vacation, Trent tries to get Malcolm to sign a contract for him but Malcolm refuses as he believes that Trent should get his education. Persistent to get the signature, Trent stalks Malcolm while he is working on a case and witnesses a murder. To keep Trent safe, Malcolm goes undercover as Big Momma for the third time. Trent joins him, going undercover as Big Momma’s great niece “Charmaine Daisy Pierce” at a performing arts’ school for girls. Trent tries to develop a romance with one of the girls as himself while “Big Momma” is being pursued by the school’s goofball security guard Kurtis Kool (Faizon Love) who has a fascination with big women.

Watch the HD trailer here: