In 2000's "Big Momma's House", Martin Lawrence had his "largest" role ever, as an FBI agent who is a master of disguise. To trap a brutal bank robber, Lawrence went deep, deep undercover - impersonating a corpulent septuangenarian known as Big Momma. Now, Lawrence is back as the boldest, biggest and baddest Momma ever.

This time, Lawrence transforms himself into Big Momma to avert a national security disaster. But saving the country is the least of Big Momma's problems, as he takes on his ultimate challenge - being nanny/housekeeper to the suspect's dysfunctional family.