Use the energy you saved up from your rest day to power through today's workout. Although this is a predominately strength-based program, you'll have one workout each week that is focused on building power and explosiveness.
Use much lighter weight in all of the exercises today to allow for fast, powerful movements. The weight should be light enough that you can be explosive in the concentric (or lifting) portion of each exercise, but heavy enough that the movement is challenging. Keep rest times to 1-2 minutes.