In this intense episode of B Built by Broser, Eric puts Mac Trucc through a SERIOUS chest workout. Mac only has 4 weeks before he steps on stage again at the NPC MuscleContest, so every workout, every rep, every set counts. You can see by the look on Mac's face that he's out for redemption from his last show, and Eric has every intention of bringing him in the biggest, baddest, and leanest he can be!