Join in while four of Fonda's instructors take turns leading viewers through a series of step exercises to help tone various muscles and improve agility. The 45-minute, high-energy workout is especially designed for those aerobics enthusiasts ready for an intermediate-level challenge. Those who find themselves feeling a bit out of breath can take advantage of some of the lower-intensity adaptations of the workout , while viewers interested in a bit tougher regimen should watch closely for the variations for more advanced step exercisers. Once the step workout ends, Fonda herself leads everyone through a 15-minute series of stretching movements that is very relaxing. These stretches are simple to do and are appropriate for nearly all workout enthusiasts.