Summary The Cubes are in the third month of intense, six-days-a-week training. Peter is pushing them harder than ever. They get a morale boost when Drako, a martial arts apparel company, gives them each a full fighting kit. They spar for the first time. One Cube, Morteza, is ready to go to the next level, his first professional fight. A kick boxer from Iran, Morteza is fit and technically skilled, but Peter worries about his focus, a concern the other Cubes share. Their fears are grounded when Morteza is late for weigh-in. UFC legend Jeremy Horn stops by the gym for a lesson. On fight night, Cubes Nickie and Ashley step into the ring for the first time for an exhibition match. Then it's Morteza's turn. He's quicker than his opponent, but smaller. It is anyone's match, but, whatever the outcome, the other Cubes are there to support him. Win or lose, Monday they will be back at the gym.

• Documentary