Features three cardio workouts (plus a warm-up and a cooldown) that become increasingly intense. Level 1: With Bob as your trainer, this 20-minute boot camp will involve every part of your body and get your fat-burning engine going strong. Level 2: With Jillian as your trainer, this 10-minute super-cardio drill workout will melt pounds galore. Level 3: With Kim as your trainer, you will continue to maximize your weight loss with a kickboxing workout that concentrates on your butt and thighs.