The fourth season of The Janice Dickinson Modeling Agency premiered on the Oxygen Network on August 28, 2008.
Janice holds an open casting call, she hires several new models, including a deaf man named Martin Ritchie.
Finding the master suite hideous, she calls on her friend, designer Christopher Ciccone, to redecorate it.
His makeover includes installing spy cameras throughout the house wired into Janice's bedroom.
Janice summons the existing models to the house and they start choosing bedrooms and taking advantage of the amenities.
Janice invites Crystal Truehart and Maurice Townsell to move into the house, Crystal because Janice believes her to be a high fashion model and Maurice because she believes his macho attitude will help the "effeminate" male models become more masculine.
Kehoe pulls her aside and asks her to live in the house because he is between places (no mention is made of his season 3 roommate, Grant).
While Janice does a shoot for Orbit, Nathan runs a casting call for Kentucky Denim jeans.
The client selects Christian, Kehoe, Dominic, Martin, and Chandler from among the men and Dominique and Polina to serve as "background".
Traci, noting the number of jobs she has booked, considers Janice's concerns about her weight to be a joke.
Janice invites cosmetic dentist Bill Dorfman to the house to examine the models' smiles.
Janice wakes the models up early the next morning to exercise before a client, Tinte Cosmetics, arrives for a casting.
While talking to Maurice, she finds empty carrot cake boxes and throat spray under Polina's bed.
Janice wants the male models to work on their movement so she orders them into dance belts and tights for a ballet lesson.
Martin is initially frustrated because he can't read the instructor's lips from his position, but soon moves to the front and has greater success.
Ed Hardy representatives call upon Janice again and book Payton to be the spokesmodel for the company's new underwear line.
Merlin is dissatisfied with the models, saying they are too large and do not walk well, but he agrees to give the agency another chance.
He shocks Crystal, the one model Janice considers high-fashion, by calling her too commercial, but agrees to give her another chance.
Janice brings in performance coach Cindera Che to teach the female models how to move.
He paints their faces chalk white and demonstrates a series of moves he expects them to make on the runway, including deep back bends.
Janice interviews that she is adamantly opposed to plus-size models because she has worked her entire career to remain thin.
Nathan takes Janice aside and explains to her that plus-size models are needed to keep the agency afloat.
Returning client Andrew Christian wants two men and one woman to model a new product inspired by Danny's previous photo shoot.
Danny acts aggressively but Chandler interviews that he has no intention of jeopardizing his place with the agency by fighting.
Janice and models Dominique, Gavyn and Kehoe are hired for a book by photographer Justin Monroe called "Down the Rabbit Hole".
Swimwear designers Parke & Ronen arrive at the house for a casting and hire Michael, Christian, Peyton and Maurice.
Janice confronts the models about their behaviour in the house, revealing her hidden camera setup.
Janice gathers the models and announces that she is moving to New York City to further her vision of creating a high fashion boutique agency.
Janice airs footage from the series and from her hidden cameras and several of the models are abashed at the revelations.
Janice subjects Brian Kehoe to a lie detector test to determine if he is straight or gay.