Twenty years ago Danny Summer found his father hanging from the rafters on Christmas Eve. Ever since that night he has been plotting revenge. When Brian Hartwell moves into Jessica Michael's guesthouse, she has no idea that her new tenant has a deadly agenda to go with his new identity. Her daughter Laura doesn't trust him from the beginning but can't convince her mother that there's more to "The Perfect Tenant" than meets the eye.
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.
Gary is a former gangster who has made a modest amount of money from his criminal career. Happy to put his life of crime behind him, he has retired with his wife Deedee to the sunny bliss of rural Spain, where he lives an idyllic life with his family and a few close friends.
Gracie Hart is a tough-as-nails FBI officer. When her office receives a letter from a terrorist going by the alias "The Citizen", they figure out that he's planning his next act at the Miss America beauty pageant.