645 Stage 3 Episode 22 Week 12: Upper Body Strength ( Air Date 2021-07-19 ) Genre Reality category. Overview "Stage 3, Week 12. A full-body strength workout emphasizing chest, back, arms, and shoulders. The program format is 45 minutes from activation warm-up through effort work and recovery cooldown. This is a Deload Week: the program keeps intensity up while reducing volume to support recovery before the next stage.".