Jackie and her clients head to Griffith Park for a tough partner workout in the California heat. Inter-group drama starts as the group is pitted against each other in a fitness competition. Will the group be able to pull together and encourage the best in each other or will the prize at stake cause a fight? Also during week 2 of Jackie's program, Jeana and Mandy learn martial arts as a new form of fitness. Will the hardcore workouts and healthy meals be reflected at the weigh-in or will Jackie have to increase the intensity even more? Find out this Monday 9/13 @ 10/9c on BRAVO's Thintervention with Jackie Warner.